Oilman

NEW PRODUCT ALERT! Opie Oils are pleased to announce we have added MOMO to our list of top quality brands. We stock a large range of steering wheels, hubs, gear stick knobs & covers, and various other accessories designed to finish off the look and feel of your vehicle. The MOMO tuning collection includes a gallery of the finest steering wheels you’ll ever get your hands on. MOMO enables those with a passion for performance to indulge in the finest tuning products possible. To see the complete range of MOMO Opie Oils has to offer please click HERE. Remember to use your club discount (usually found in signature) to get an additional 10% off everything on our website! Struggling to find the right Boss Kit for your car? Use our helpful Lookup Guide. As well as MOMO we also sell B-G Racing Wheel Spacers. These are designed to bring the wheel closer to the driver for increased comfort, whilst combining labour-saving design, tough, highest quality manufacture, practicality and exceptional value. Don't forget Opie Oils Engine Oil & Filter Look up Guide! Simply enter your vehicle details to find the kit for your specific vehicle - the correct amount of the correct oil, an OEM quality oil filter and a free top up kit which includes a fold up funnel, handy wipes and disposable gloves! If you need any further help with our MOMO or B-G Racing collection, please feel free to contact us on 01209 202949, Monday - Friday, 8:30-5:30. Alternatively, drop us an email to sales@opieoils.co.uk. Cheers! Oilman

Good Morning. We have something going on this afternoon, to make sure you don't miss it please sign up to the Opie Oils http://www.opieoils.co.uk/t-newsletter-signup.aspx] Email List Cheers Oilman

At Opie Oils, we think it's good to change things up every now and then. That's why we've given our website a bit of a facelift - we still have the same fantastic range of products, (which is constantly growing) but we have made it easier to find exactly what you need by stripping back the clutter and making the whole website more streamlined. As a little bonus to celebrate this, we are also offering FREE SHIPPING ON ORDERS OVER £35! You don't need a code for this, it will automatically apply at checkout, and can be used on Mainland UK orders only. Be quick, this offer ends midnight Sunday (21/02/2016) Why not have a look around, let us know what you think. If you have any comments then please let us know - we want to make it as easy as possible for you to find what you're after on our re-skinned website so we would welcome any constructive criticism! Keep an eye out for the brand new sliders on the home page for current deals, offers and general great prices, as well as quick links to all of our most helpful online tools. Here are a few links to some of our most popular look up guides and products on the new website, simply click on the one you are after and enter your vehicle details to get started: -ENGINE OIL AND OIL FILTER SERVICE PACK LOOK UP GUIDE With prices starting from as little as £17.99, these bespoke kits contain the correct amount of the correct oil for your vehicle. Also, an OEM quality oil filter, and a FREE disposable top up kit which consists of a fold up funnel, wipes and disposable gloves, making this an easy and mess free job! -SPARK PLUG AND GLOW PLUG LOOK UP GUIDE It's easy to find the right plug for your vehicle, no matter if it's a petrol or diesel powered engine, we've got high quality options from Denso and NGK available and ready to go -BREMBO BRAKE DISCS, PADS AND DRUMS LOOK UP GUIDE We stock a one of the best known brake brands on the market today - Brembo. These guys produce some of the highest quality items for road vehicles to date! -ROOF RACKS AND BARS LOOK UP GUIDE We offer a range of budget and high quality roof bars for your vehicle in a range of different specifications We have plenty more on offer, from motorcycle oils and products and HeatShield protection to K&N performance filters and a huge range of cleaning and detailing products. We've got you covered! In the event that you can't find what you're after, or require a bit more info, simply give us a call on 01209 202 944 Monday to Friday 8:30-5:30, or drop us an email on sales@opieoils.co.uk and we'll be happy to help. Don't forget, your 10% forum discount (usually found in signature) still applies on the new website, so make sure you use it! Until next time -Oilman

Quick! Opie Oils is offering 15% off EVERYTHING - but for the next 500 orders only! To take advantage of this very limited time offer, simply visit our website HERE and use the code NEXT500 to get 15% off your order. This discount applies to EVERYTHING on our website - this includes ALL of your favourite products, from fully synthetic racing engine oils, to K&N performance filters. To whet your appetite, have a look below for a few of our favourite products and the savings to be made! -Fuchs Titan Race Pro S 5w-40: 5 litres usually £47.95, NOW £40.76! -Castrol Edge Titanium 10w-60 FST: 4 litres usually £41.95, NOW £35.66! -Millers Oils Nanodrive CFS 5W-40 NT: 5 litres usually £55.88, NOW £47.50! You can also use this discount on our engine oil and filter service kits - these tailor made kits designed specifically for your vehicle include the correct amount of the correct oil, an OEM quality oil filter, and a free handy kit which consists of a disposable funnel, gloves and wipes, making this an easy and mess free experience! Simply CLICK HERE and enter your vehicle details to get started. If you need any further technical advice or just have a general enquiry, give us a call on 01209 202 944 Monday to Friday 8:30-5:30 or drop us an email to sales@opieoils.co.uk and we'll be happy to help! Don't forget, this is a limited time offer - once all the codes have been used up, I'm afraid that's it guys! One more time, that code is NEXT500 Until next time -Oilman

We know what it's like after all the mad spending at Christmas, and how your bank account can feel the pinch in the new year. Sometimes, jobs that need doing on your vehicle can be put off until you've recovered a bit from spoiling everyone - Not to worry, Opie Oils has arrived conveniently just in time for pay day so that you can get the work done. Sooner rather than later! The Opie Oils payday weekend sale is NOW ACTIVE and ready to go, simply use the code: PAYDAY (sorry, only one discount coupon can be used at a time, so this cannot be used on top of your club discount) to get 15% off everything on our website, www.opieoils.co.uk but you have to be quick, as this offer ends on MIDNIGHT SUNDAY 31st January! To take advantage of this limited time offer, place an order online at www.opieoils.co.uk or give us a call on 01209 202944 Don't forget, we've got a really handy look up guide to help you out if you're not 100% sure what you need, ranging from performance filters to Brembo brake discs, pads and drums. Need an engine oil and filter service kit to get your vehicle off to a strong start for the new year? Not a problem, follow THIS LINK to find the bespoke kit for you! Happy shopping - Oilman

In Europe, Mercedes, BMW, VW, Audi, SEAT, Skoda and General Motors all choose FUCHS products as factory fill for their prestigious cars. FUCHS engine oils meet the latest and most demanding specifications set. At the pinnacle of their synthetic oils, they offer the Fuchs Titan Race Pro range and as part of these fantastic race oils, is the Fuchs Titan Race Pro C3 5w-30. Available on our Opie Oils website from as little as £44.96 for 5 litres with your club discount! (usually found in signature) If you have a performance diesel engine that has a diesel particulate filter fitted, picking a performance oil for it has been tricky. It gets even more tricky if the engine has been tuned. Removing the DPF was an option, however due to the change in MOT regulations, that isn't a great idea any more. To cater for that, Fuchs have produced the Fuchs Titan Race Pro C3 5w-30, which is an ester based oil - just like the very popular Fuchs Titan Race Pro S and R. It is designed to protect your engine during hard use that could cause normal oils to break down. Fancy a closer look? Follow the link HERE for further details. Although the Fuchs Titan Race Pro C3 5w-30 is not manufacturer approved (so not for cars under warranty), it has been designed for use in place of BMW, Mercedes, Porsche and VW group cars that require the ACEA C3 specification for the DPF. There are various other cars, such as Hondas, KIAs, Vauxhalls, Minis, Nissans, Peugots and Subarus that also require a C3 oil - this is a top of the range option for them. Not sure if this is suitable for your particular set up? Not a problem, just give us a call on 01209 202 944 Monday to Friday, 8:30 - 5:30 and we can look into it for you. Alternatively, drop us a message on here or an email to sales@opieoils.co.uk we'll be happy to help! We also have a huge range of engine oil and filter service kits available for your vehicle, with prices starting from as little as £17.99 with your club discount. It's worth having a look through your options - just follow THIS LINK to our handy look up guide and start entering your vehicle details to find the correct one for your vehicle. It's really that simple. Until next time - Oilman

HEATSHIELD PRODUCTS AT OPIE OILS - BRINGING YOU THE HIGHEST LEVELS OF HEAT PROTECTION FOR YOUR CUSTOM VEHICLE - FROM AS LITTLE AS £9.86 WITH FORUM DISCOUNT It is a fact that engines and all their components create very high temperatures when operating at performance levels. If you have a modified vehicle, then we have the Heatshield product to keep you cool and give you that extra edge over any competition. Opie Oils now stocks a fully comprehensive range of HeatShield Products - if you are looking for: -Automotive Heat shields -Exhaust wraps -Hose protection -Thermal barriers -Thermal insulating tapes -Thermal ties -Turbo shields Look no further, we have got it covered! We have updated every single HeatShield Product on our website with relevant and concise information. From the benefits gained by using each product, right down to the precise temperatures that they can take, all you need to know will be right there for you - this allows you to browse through and find exactly what you need for your specific set-up, as well as giving your car or turbo that custom look. Combining cutting-edge technology and constructed with the highest quality materials, Opie Oils are proud to welcome Heatshield Products into our range - don't forget your additional 10% forum discount! (usually found in signature) If there is any further information you need, simply drop us a message or give us a call Monday to Friday 8:30 - 5:30 on 01209 202 944, we'll be happy to help. Until next time -Oilman

Millers Oils Nanodrive CFS 5w-40 NT fully synthetic engine oil - with an RRP of £71.49 for 5 litres, we are offering this ultra high performance race oil for just £57.56 with your forum discount: a saving of £13.93! At Opie Oils, we are proud to stock a wide range of Millers Oils, who are world famous for making the highest quality performance oils. The Millers Nanodrive Oils are the ultimate in "low friction high power oils" offering a Fully Synthetic, Triple Ester based oil with Nano Technology. As you can imagine, using this competition oil leads to a range of benefits: - Significantly reduced friction - Reduced component wear - Reduced heat production - Increased power output - Increased torque The basic principle behind this Nanodrive formulation is to release power through friction reduction, whilst maximising wear protection. The Nanodrive CFS 5w-40 NT is one of our most popular viscosity choices in this range, suitable for a wide range of vehicles and all kinds of applications - from fast road/street, modified engines, race, rally, sprints and even hill climbs, this will have you covered. It's worth having complete peace of mind that you have a top quality product in your vehicle, all for the great price of £57.56 for 5 litres! Not sure if the Millers Nanodrive CFS 5w-40 NT is the correct viscosity for your particular set up? Not to worry, we offer a wide range of other viscosity Nanodrive offerings from Millers Oils, all with great savings off RRP, why not have a look HERE. Just don't forget to use your club discount (usually found in signature) to get the additional 10% off the RRP! Please feel free to give us a call Monday to Friday 8:30 - 5:30 on 01209 202 944 if there's anything else you need. Alternatively, drop us a message on here or an email on sales@opieoils.co.uk we'll be happy to help! Until next time - Oilman

Engine Oil and filter service kits at Opie Oils: An OEM quality oil filter and the correct amount of oil for a FULL change, tailored to your specific vehicle - from as little as £17.99 With the Opie Oils engine oil and filter service kit look up guide, we make it easy to find everything you need for your oil change - if you've got a vehicle, WE'VE GOT THE SERVICE KIT FOR IT. Ensuring that your car has the right engine oil is an important part of keeping it running smoothly. Benefits of an oil change include: - Correct lubrication - Cooling - Cleaning - Internal component protection There is also the considerable financial benefit gained when doing this at home and cutting the garage out of the equation - should you choose to take your service kit to the garage then it's good to know that they will be using a top quality oil in your vehicle, rather than the "standard" oil used in garages - it's worth it for the peace of mind. As part of this, you will also receive an OEM quality oil filter, as well as the option of choosing a top of the range K&N filter that has been matched using an extensive fitment database - you can rest assured that you will be fitting only high quality, and CORRECT products to your vehicle. Combined with this is a FREE disposable filling kit which includes a funnel, gloves and handy wipes - making your oil change easy and mess free! To get started, simply follow this link and enter your vehicle details to find the specific kit for your vehicle, it's really that easy. Got a race, track or custom vehicle? Not a problem, get in touch with our recommendation form and we'll match the right products to your specific set up, it's condition and even your style of driving. Alternatively, give us a call on 01209 202 944 and we'll be happy to help! Don't forget! Combine all of these great benefits with your additional 10% FORUM DISCOUNT. (usually found in our signature) Until next time - Oilman

ROLL UP, ROLL UP - IT'S NEW YEAR AND TIME FOR THE OPIE OILS COMPETITION! Our competition is now OPEN to enter, up for grabs is a GoPro HERO4 Session worth £169 - Included with this great piece of tech is: -Standard frame -Low-profile frame -Curved adhesive mount -Flat adhesive mount -Ball joint buckle -Mounting buckles and hardware -Micro USB cable Sound good? Well, YOU could be in with a chance of winning it by simply following this link to our competition page and answering the multiple choice question. The closing date for this competition is Thursday 31st March 2016 so please make sure you don't miss out and get your answers in by this point! Thinking caps on, and best of luck to you all from the Opie Oils team! -Oilman Terms & Conditions We DO NOT pass any of your details on, we only ask for your telephone number as primary contact for the winner. Entries must be over the age of 18 years old. Entries made by completing the above or by post to: Opie Oils, New Year 2016 Competition, Cardrew Industrial Estate, Redruth, Cornwall, TR15 1SS. Competition is free to enter with no purchase necessary. Competition started on the Monday 4th January 2016, closing date for entries is 1pm, Thursday 31st March 2016 in Great Britain. The winners will be picked soon after, contacted and announced to all entries by email or by post.

Hi Chris Glad you found it useful. Cheers Tim

Engine Oil Viscosity Viscosity is the most misunderstood aspect of oil and yet it is the most important. Viscosity is the force required to shear (break) the oil at a certain speed and temperature. Oils work because they have viscosity; the drag of a rotating part pulls oil from a low-pressure area into a high pressure area and “floats” the surfaces apart. This is called “hydrodynamic lubrication” and crankbearings depend on it. Oil must be capable of flowing at low temperatures, so that it gets around the engine in a fraction of a second at start-up and must protect engine components at high temperatures without evaporating or carbonising and maintain adequate (not excessive) oil pressure. Many people think that the thicker the oil, the better the protection, but if the oil is too thick, it will not flow properly, leading to reduced protection. The numbers on every can of oil indicate its performance characteristics when new but there are many misconceptions on what these numbers actually mean. For multigrade oils you will see two numbers (for monograde oils only one). The first is followed by a “w” and is commonly 0, 5, 10, 15 or 20. The second number is always higher than the first and is commonly 20, 30, 40, 50 or 60. The first and second numbers ARE NOT related. The “w” number (0, 5, 10, 15 or 20) When multigrade oils first appeared, a low temperature test called “w” (meaning “winter” not weight) was introduced. Using a “Cold Crank Simulator", the test measures the oils ability to flow at low temperatures. ALL oils are THICKER at low temperatures than at high temperatures but the lower the “w” number, the quicker the oil will flow at low temperatures. The second number (20, 30, 40, 50 or 60) This number is known as the SAE (Society of Automotive Engineers) number and is measured in “Centistokes” (cst) at 100C. Centistokes (cst) is the measure of a fluid's resistance to flow (viscosity). It is calculated in terms of the time required for a standard quantity of fluid at a certain temperature to flow through a standard orifice. The higher the value, the thicker the oil. An oils cst at 100C determines its SAE rating within the following parameters. SAE 20 = 5.6 to less than 9.3cst SAE 30 = 9.3 to less than 12.5cst SAE 40 = 12.5 to less than 16.3cst SAE 50 = 16.3 to less than 21.9cst SAE 60 = 21.9 to less than 26.0cst ALL oils labelled 40 must fall within the SAE parameters at 100C so everything from a monograde 40 to multigrade 0w-40, 5w-40, 10w-40, 15w-40 or 20w-40 are approximately the same thickness at 100C. Some oil companies label oils as SAE 35, 45 or 55, but as you can see from the above figures, there isn't a SAE 35, 45 or 55. This "could" be because they are approximately on the boundary of the two grades, but as we don't deal with any of those I can't really comment further. Summary Cold start. A 5w-40 will flow better than a 10w-40. A 10w-50 will flow better than a 15w-50 A 5w-40 is the same as a 5w-30 At operating temperatures. A 10w-50 is thicker than a 10w-40. A 15w-50 is thicker than a 5w-40 A 0w-40 is the same as a 10w-40 If you look above, you will see that the figures quoted do not indicate at all as to whether the oil is synthetic or mineral based... Well except for 0w oils as synthetic PAO basestock is required to acheive this viscosity. Generally the oil you use should be based on the manufacturers recommendation found in the owners manual, but then modifications, climate and the type of use can affect that recommendation. If you are unsure of what is the correct recommendation for your car and would like to know more please contact us here oilman@opieoils.co.uk With thanks to John Rowland of Fuchs/Silkolene Cheers Tim and the Opie Oils team

Thanks, glad you like it

The Advantages of Synthetic Oils over Mineral oils Extended oil drain periods Better wear protection and therefore extended engine life Most synthetics give better MPG They flow better when cold and are more thermally stable when hot Surface-active meaning a thin layer of oil on the surfaces at all times (in ester based oils) How Synthetic oils Achieve these Benefits Stable Basestocks Synthetic oils are designed from pure, uniform synthetic basestocks, they contain no contaminants or unstable molecules which are prone to thermal and oxidative break down. Because of their uniform molecular structure, synthetic lubricants operate with less internal and external friction than petroleum oils which have a non-uniform molecular structure. The result is better heat control, and less heat means less stress to the lubricant. Higher Percentage of Basestock Synthetic oils contain a higher percentage of lubricant basestock than petroleum oils do. This is because multi-viscosity oils need a great deal of pour point depressant and viscosity improvers to operate as a multigrade. The basestocks actually do most of the lubricating. More basestocks mean a longer oil life. Additives Used Up More Slowly Petroleum basestocks are much more prone to oxidation than synthetic oils. Oxidation inhibitors are needed in greater quantities in petroleum oils as they are used up more quickly. Synthetic oils do oxidize, but at a much slower rate therefore oxidation inhibiting additives are used up more slowly. Synthetic oils provide for better ring seal than petroleum oils do. This minimizes blow-by and reduces contamination by combustion by-products. As a result, corrosion inhibiting additives have less work to do and will last much longer in a synthetic oil. Excellent Heat Tolerance Synthetics are simply more tolerant to extreme heat than petroleum oils are. When heat builds up within an engine, petroleum oils quickly begin to burn off. They are more volatile. The lighter molecules within petroleum oils turn to gas and what's left are the large molecules that are harder to pump. Synthetics have far more resistance as they are more thermally stable to begin with and can take higher temperatures for longer periods without losing viscosity. Heat Reduction One of the major factors affecting engine life is component wear and/or failure, which is often the result of high temperature operation. The uniformly smooth molecular structure of synthetic oils gives them a much lower coefficient friction (they slip more easily over one another causing less friction) than petroleum oils. Less friction means less heat and heat is a major contributor to engine component wear and failure, synthetic oils significantly reduce these two detrimental effects. Since each molecule in a synthetic oil is of uniform size, each is equally likely to touch a component surface at any given time, thus moving a certain amount of heat into the oil stream and away from the component. This makes synthetic oils far superior heat transfer agents than conventional petroleum oils. Greater Film Strength Petroleum motor oils have very low film strength in comparison to synthetics. The film strength of a lubricant refers to it's ability to maintain a film of lubricant between two objects when extreme pressure and heat are applied. Synthetic oils will typically have a film strength of 5 to 10 times higher than petroleum oils of comparable viscosity. Even though heavier weight oils typically have higher film strength than lighter weight oils, an sae 30 or 40 synthetic will typically have a higher film strength than an sae 50 or sae 60 petroleum oil. A lighter grade synthetic can still maintain proper lubricity and reduce the chance of metal to metal contact. This means that you can use oils that provide far better fuel efficiency and cold weather protection without sacrificing engine protection under high temperature, high load conditions. Obviously, this is a big plus, because you can greatly reduce both cold temperature start-up wear and high temperature/high load engine wear using a low viscosity oil. Engine Deposit Reduction Petroleum oils tend to leave sludge, varnish and deposits behind after thermal and oxidative break down. They're better than they used to be, but it still occurs. Deposit build-up leads to a significant reduction in engine performance and engine life as well as increasing the chance of costly repairs. Synthetic oils have far superior thermal and oxidative stability and they leave engines virtually varnish, deposit and sludge-free. Better Cold Temperature Fluidity Synthetic oils do not contain the paraffins or other waxes which dramatically thicken petroleum oils during cold weather. As a result, they tend to flow much better during cold temperature starts and begin lubricating an engine almost immediately. This leads to significant engine wear reduction, and, therefore, longer engine life. Improved Fuel Economy Because of their uniform molecular structure, synthetic oils are tremendous friction reducers. Less friction leads to increased fuel economy and improved engine performance. This means that more energy released from the combustion process can be transferred directly to the wheels due to the lower friction. Acceleration is more responsive and more powerful, using less fuel in the process. In a petroleum oil, lighter molecules tend to boil off easily, leaving behind much heavier molecules which are difficult to pump. The engine loses more energy pumping these heavy molecules than if it were pumping lighter ones. Since synthetic oils have more uniform molecules, fewer of these molecules tend to boil off and when they do, the molecules which are left are of the same size and pumpability is not affected. Synthetics are better and in many ways, they are basically better by design as they are created by chemists in laboratories for a specific purpose, rather than being modified from something that came out of the ground to be as good as they can for a purpose. Cheers Tim

Buy 5L of Fuchs TITAN GT1 XTL 5w-40 & Get 1L FREE PLUS... Starting on the 1st July, 10am Monday to Friday we will have one of our most popular products on offer at a ridiculous discount for 24 hours only. PLUS over the weekend our Friday Daily Deal will continue until 10am Monday! Our Daily Deal will not always be posted on the forum, but for those who subscribe to our daily deal emails will receive an email each day to let you know what spectacular saving there is to be had. So get subscribed and START SAVING WITH OPIE OILS! SUBSCRIBE HERE >>>> Oilman

Yes, quality does vary, just like anything. I wouldn't recommend a cheap filter, but there is often nothing at all the matter with one from a reputable company. There is one fairly well known filter company that has recently been bought out by a large motor factors in order to get the filters at a very low price, but based on what I have heard, they are cutting the quality to bring the prices down. The same has happened with a braking company (probably the last place you want to cut the quality) and some other bits that I can't remember right now, so what may once have seemed like a quality product may now be a budget item. UFI and Mahle make a huge amount of filters that are rebranded as the car manufacturers own item, so we are confident in their quality. Cheers Tim

Hi Gordon £6.30 is less than it would cost us, so fair enough if you can get them for that. Cheers Tim

Hi Gordon With us the Subaru one is £11.98, the UFI one is £4.36 (2.5L) or £5.79 (2.0L). We've sold loads of the UFI ones with no issues at all. Cheers Tim

Who makes the Subaru filters? An oil filter company. Chances are they just paint one of their normal ones differently to the others and sell it as a Subaru one. I'm pretty sure that if you got a Subaru one, it would fit on an RX-8 (the non-Subaru branded ones that we have fit the RX-8 as well) and do the same job. There was also a recall of Subaru filters recently due to problems. Don't get me wrong, there is nothing the matter with the Subaru branded filters, but there is also nothing wrong with a filter from a reputable company either. Cheers Tim

Hi all, Around this time of year we get quite a few questions about experiencing difficult gearshifts in cold weather, so we thought you might find this useful. Using the incorrect viscosity gear oil in your car can make gear changes very difficult when the gearbox, and oil are cold. This is why we often don't recommend using thicker gear oils than the manufacturer specifies. It is easy to think that increasing the viscosity from a 75w-80 to 75w-90 or 75w-90 to 75w-140 isn't going to affect the cold properties of the oil, but it does. Below are some figures showing the viscosity of a selection of oils at 40C measured in mm²/s ( 1 millimeter²/second = 1 centistoke, A centistoke is a decimal fraction of the CGS unit of kinematic viscosity stokes, which is equal to centimeter per second (cm²/s). 1 stokes is a kinematic viscosity of a fluid with a density of 1 g/cm³ and a dynamic viscosity of 1 poise… In short the thickness of oil!). 40degc may not seem cold but this is the temperature at which the viscosity is measured and is the information you will find on the oil technical data sheets. I have listed specific brands and products to make it easier to see the differences in viscosity. Fuchs Sintofluid FE 75w = 40.8 @ 40°c Fuchs Sintofluid 75w-80 = 49.8 @ 40°c Fuchs Sintopoid 75w-90 = 90.5 @ 40°c Fuchs Sintopoid LS 75w140 = 170 @ 40°c As you can see from that, they are all 75w oils, but there is a large difference in the viscosity at lower temps; the Sintopoid 75w-90 is over twice as thick as the Sintofluid FE 75w when cold and the 75w-140 is almost twice as thick as the 75w-90. So, if you've got a car that needs one grade of oil as standard, but you've modified it and decide to try a thicker oil, or someone puts the wrong oil in, it might really affect the cold gear shifts. Usually, increasing the quality is a better option than increasing the viscosity when thinking about upgrading from standard fluid. Also, viscosity ratings are not exact points, but are a band that the viscosity should fall in. The Motul Gear 300 75w-90 has a viscosity of 76.2mm²/s at 40°c and the Castrol Universal 75w-90 is 84.8mm²/s, so you can see there is some variation in oils that appear to be the same viscosity. A lot of gearboxes specify an 80w-90 rather than a 75w-90, but I would always tend to go for a 75w-90 instead as there can be a large difference is the viscosity when cold. The Motul Gearbox 80w-90 is 164mm²/s, so over twice as thick as their Gear 300 when cold. If you're using an 80w-90 and are having stiff cold gear changes, changing to a 75w-90 is likely to improve things. If you have any questions or need further advice please post here or email us at sales@opieoils.co.uk Cheers Tim.

*** FREE STANDARD UK MAINLAND SHIPPING FOR ORDERS OVER £35 *** * Some Scottish postcodes not included *** CAN BE USED IN CONJUNCTION WITH OTHER OFFERS *** - PLUS THESE OFFERS AS WELL > > > > > Motul 6100 Synergie+ 10w-40 now only £24.99, was £33.60 Saving you a total of £8.61 on each 5 litres bought. 25% off all Ferodo brake parts when you use voucher code FERODO25 View Ferodo brake parts for your car here >>>> 30% off all Trico wiper blades - use voucher code TRICO30 View the correct Trico Neoform & Exact fit wiper blades for your car >>>> £99 = 20L Gulf Competition 0w-30 Engine Oil - Was £152.44 - Total Saving £53.42 20% off K&N Performance Filters - The Whole Range! As always, our expert advice is free. If you need help you can call on 01209 215164 (Option 2), email us at sales@opieoils.co.uk, or just ask here. Cheers, Oilman

Ending Midnight Sunday 10th June Take advantage of this offer here >>>> Cheers, Oilman

20% OFF All Oils & Lubricants Available at Opie Oils Voucher code JUBILEE cannot be used on trade orders or Millers Oils Nanodrive engine oils. This offer is for a LIMITED TIME ONLY! As always, our expert advice is free. If you need help you can call on 01209 215164 (Option 2), email us at sales@opieoils.co.uk, or just ask here. All current offers from Opie Oils can be seen HERE > > > > > Cheers, Oilman