Quote:
Originally Posted by hayden55
Results: Gains must have been less than 1%. There's not a huge difference. Anything below 0w-20 whatever.
Also gen 3 prius is spec'd to run 0w-16 all the way to 20w-50.
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Yeah I'm shooting for about 10 to 12cSt at operating temperature.
Maybe the oil only ever gets up to 180f and a "16 weight" oil is fine, but I doubt it.
The OEMs want us to use 0w-20 or 0w-16 and whatever because it benefits them. That way they can post higher cafe numbers and have to sell less electric and hybrid cars and it lets them sell another car that much sooner.
Chances are the Prius oil temp get up to and runs at 200 to 230f and therefore an oil that ends with the number 30 is ideal.
Then go with a 0w, 5w or 10w depending on your winter conditions.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
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