Quote:
Originally Posted by dsgerbc
Cooler and heavier oil means your pistons are getting fried.
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uh, where are you drawing this logic from? care to elaborate how running 0w30 vs. 0w20 will "fry" your pistons?
Thicker oil is going to offer slightly better protection at those high temps. I'm not saying dump gear oil in the car, it's one step increase in viscosity, which Subaru actually recommends for harsh/aggressive driving