will work, depends on miles and use. would run 10w40 summer 10w30 winter
5w30 would be my suggestion.
5w-30 is recommended fluid, 10w-30 won't hurt. It's an old 4.3, they arnt very picky
My truck 1994 Silverado 1500 extended cab. My question is I have 196000 miles on the motor, what's the best motor oil to use.
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