Is 15w40 oil too thick for my 100k LT1 vette
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My 94 Vette almost has 100k and it started leaking oil after the last oil change when i put in full synthetic Mobil 1 5w-30...Now I want to get rid of the leaks for the most part so I want to run a thicker oil..I was thinking..15w40 conventional..I live in Arizona..It doesn't get cold here..and it's a third car anyways...What do you think????