I'm building a 440 Dodge and I am looking for ideas as to whether run diesel oil or the regular stuff with VSOT?
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Sort of like when I ran Castrol Syntec 0w-30 in two motors rated for a 5w-30 oil, they both ran like slugs and mileage was killed on them.
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Sort of like when I ran Castrol Syntec 0w-30 in two motors rated for a 5w-30 oil, they both ran like slugs and mileage was killed on them.
how is it you ran a lighter oil and the mileage got worse and they ran like slugs?