Quote:
Originally Posted by PowerDemon
Seems like a broad generalization that 10W-30 is “the best oil for ANY street engine”. I personally wouldn’t want 10W oil in my car during the winter. Stuff is like sludge around 30*. What experience do you have to say the LT4 would work well with 10W-30?
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This is kind of a random statement - it pours just fine at 30 F. Run 5W-30 if you're in a northern climate.
Look up pour point and cold viscosity for 0W-40 vs 5W-30