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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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#15 |
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Your fuel type has nothing to do with oil. Stick with a good synthetic 5-30 or 0-20
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#16 | |
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The growing use of Ethanol in modern pump fuel significantly increases the risk of carburetor and fuel system corrosion. Ethanol is added to fuel as an “oxygenate” for emissions purposes. But Ethanol is hygroscopic, meaning it absorbs moisture, which causes corrosion in the fuel system and inside the engine. Plus, high levels of Ethanol dilution in the motor oil can lead to increased moisture in the crankcase, thereby causing rust and other corrosion problems. Ethanol by itself is corrosive to components made of Aluminum and Zinc, while gasoline-oxygenate blends can corrode other materials such as Magnesium and Steel. Problems caused by Ethanol in gasoline and oil are then compounded by long periods of storage between uses. Motul... • Improved compatibility: Motul 300V now fulfills modern engine requirements: compatible with exhaust gas after-treatment systems such as particulate filters, compatible with biofuels (especially Ethanol) and protects against LSPI (on downsized engines). Here's a vid (somewhat cheesy add) for an oil made to provide additional protection when using ethanol fuels... Testing done by Engine Labs... https://www.enginelabs.com/engine-te...ur-engine-oil/ A technical White Paper... https://pubs.rsc.org/en/content/arti.../ra/c7ra00357a That's a quick search, there's more. Not trying to say E85 will make your oil the devil's spit, but KNOW what's going on with your oil and engine wear. Compare long term UOA trends with 93 vs long term use with E85, on YOUR car. If your particular engine, mods, environment, driving style, oil brand, etc... lets you go 6K miles between OICs with comparative results to 93 fuel, that's awesome, but just know. Those results may not be the same as the next guy. This is why saying "I do it and it works well, so anyone else can too", can be problematic. I prefer to err of the side of caution, spend a bit more on UOAs and oil changes vs replacing parts. Our shop mules (Stock, and big power) and all have modified OCIs when running E85. We also NEVER park a car for more than a month with E85, they always get 93 before and long-term parking due to the hydrophilic properties and corrosion that accompanies it. The exception is a car with a fuel cell that has an added desiccant breather setup that pulls moisture out of the air, but even that gets checked monthly and changed as necessary. |
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The Following User Says Thank You to KillerBMotorsport For This Useful Post: | TommyW (01-05-2023) |
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#17 | |
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But as you say, it is best to be at least a little cautious. Potential moisture buildup is really the one major and only worry of E85. So the solution is quite simple... don't let your car sit around with it for long periods of times. Fire it up and take it out for a drive. I'm on flex so that makes it easier to switch around, but with any decent mix of E85 in my tank, I've never let the car sit for more than a week or two. Maybe I'm being extra and maybe I'm not. But there's nothing wrong with firing her up and taking her out for a spin as it only brings me more joy. ![]() |
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#18 |
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#19 |
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#20 |
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Ok let me tell you a secret that no one knows……………… New oil is the best.
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The Following User Says Thank You to Grady For This Useful Post: | x808drifter (01-09-2023) |
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#21 |
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#22 |
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The Following User Says Thank You to TommyW For This Useful Post: | x808drifter (01-09-2023) |
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#23 |
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#24 |
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I mentioned good race quality synthetics. So what is compatible with e85 other than those?
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#26 |
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Some recommended oil which is more diesel compatible however some of the guys running higher rpm like us have a problem with it foaming.
The consensus seems to be more frequent changes and even going up one notch in viscosity. |
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#27 | |
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__________________
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2015 Toyota 86 GTS - Ecutek w/ Flex Fuel, Xtreme Stage 1 Organic Clutch - PSR UEL Header, Invidia R400 Catback - Whiteline Swaybars, 18" ROH Blue Evo R |
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#28 | |
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Likely to be placebo but the acceleration felt better after the oil change compared to previous use of standard 5w-30. Had only been 4K kms since last oil change and the old oil came out still looking clean |
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