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    Thicker isn’t always better, but is it for rear differentials? Jumping from 75W85 to 75W110 in a Torsen LSD

    I have a 2022 Mustang GT and the performance pack comes with a Torsen rear LSD. I am gonna be draining out the factory fluid at about 12K miles and swap to Amsoil SevereGear which is raved about. OEM fill is a 75W85 but many think that’s mainly for fuel efficiency and is “good enough”. I know...
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    Full synthetic 0W40 or 5W40’s with both high moly and high boron additive pack?

    Those two additives really quiet down the Gen 3 Ford 5.0 Coyote ticking (and of course that’s what Liquimoly Ceratec has a lot of it which instantly quiets them down, as well as the factory fill special additive pack is pretty high in both substances - no surprise ticking begins after first oil...
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    2022 Mustang GT 5.0L Coyote, Mobil1 FS 0W40, 5500 miles on car, 2300 miles on oil, has infamous tick

    Preface - Factory fill drained at 1200 miles (no sample) - M1 5W30 + FRAM Ultra XG73717 from 1200 mi to 3200 mi (no sample) - M1 0W40 + Ford Racing FL820HD from 3200 mi to 5500 mi (2300 miles on oil, first used oil analysis, replaced fluid and filter with same 0W40 and Ford Racing FL820 filter)...
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    M1 FS 0W40 vs. Castrol Edge 0W40

    Since my Coyote Mustang takes 10 quarts and I'm anal about frequent OCI's, I want to stick to 5 quart jugs that I can get in the $25 range at Walmart locally. My car calls for 5W30 but want to up to a 40 weight for a bit better protection during hard driving with similar cold-start protection...
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    5.0 Coyote oil filters with enough flow to be safe for frequent redline

    Now that my 2022 Mustang GT with a Coyote is broken in, I’m starting to do some auto crossing and having more fun with the car opening it up. Is there any advantage to using a larger style filter than the OEM FL500S size assuming I keep my oil changes frequent? I swapped the factory-only FoMoCo...
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    Ford Racing revised the CM-6731-FL820

    Looks like they changed to 6 holes and a black gasket instead of the usual 8 holes and blue gasket. Just bought it brand new from Summit Racing so I doubt it’s a knockoff. Still weighs a hefty 19.7 ounces which is exactly what the older design weighed. The Motorcraft version FL820 only weighs 13...
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    Mustang Coyote 5.0L V8 engine oil recommendations - Ford has spec’d 5W20, 5W50, and 5W30 for it before.

    I am picking up a brand new 2022 Mustang GT with the 5.0L V8. Currently 2021-2022 models calls for 5W30. The 2018-2020 were calling for 5W20, all mustang V8s in these model years are identical Gen 3 in terms of internals. The 2015-17 Gen 2 Coyote called for 5W20, and so did the Gen 1 from...
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    2002 Nissan VQ35DE, Mobil1 0W40 4100 miles with autocross/light race duty

    last analysis was done with M1 5W30
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    What are safe oil temperatures during spirited driving?

    I’m running Mobil1 0W40 (changed from M1 5W30 because of supposedly much better shear stability and better base) in a VQ35DE engine. I have a stock oil cooler and stock radiator, just have a secondary trans cooler. I have gauges installed and cruising on the highway, oil temp is 206-213F...
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    Choosing between 5W40 Synthetics

    Hey all, after some helpful comments I have decided to go for a 5W40 for my VQ35DE Nissan to be adequate for winter cold starts in Detroit Michigan but protect a little more at the high temperatures and offer more shear stability than my current 5W30 Mobil1, especially when I drive the car...
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    Confused about Ideal Oil Visocities for Nissan VQ35

    Hey all, I am new to BITOG. I own a 2002 Nissan Altima with the VQ35DE since 56k original miles and now has 72,000 miles. The engine is in excellent condition, I bought it from the original owner who was an elderly lady who saved her receipts for everything. As a young car enthusiast, I have...
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