Pennzoil Platinum, Amsoil XL, M1, Syntec, RP, Valvoline Syn, who'd I forget?
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If your engine specs 5w20 run it and run it as hard as you like.. You are not going to hurt it. You should run the lightest grade recomended and be happy you don't have some poorly machined engine that requires heavy oils to make up for poor manufacturing
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IMHO, Acura / Honda uses 5w-20 for CAFE.
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Hey goofy. There's dozens of UOAs here that clearly show that 5w20s used in the vehicles their spec for, do as well as any other oil grade you can think of.
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And why are you using 5w-20 oil, is it for HP or MPG?
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And there's at least one where 5w20 did better than any other grade in a vehicle that is spec'd for 10w30--mine! Been using 5w20 for over two years now and still going strong.
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So can I use 5w-20 in my Toyota which calls for 5w-30?
And why are you using 5w-20 oil, is it for HP or MPG?
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So being an Amsoil fan is 5w-20 XL7500 ok to try / use
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Oil flow,flow,flow depends on your oil pump,pump,pump....
The oil is just going along for the ride....
Nothing wrong with 5w-20 or even 0w-20 for the Acura, but I would not run it in a 1999 Toyota in Florida. I tried this experiment (Amsoil 5w-20 and Synergyn 0w-20 syns), in my 2.4L,'95 Tacoma and the bearing wear increased dramatically.
TS