What weight oil should I use?
November 25th, 2013, 5:33 AM
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What weight oil should I use?
I have an 03 chevy with the 5.3 and had some lifters making noise so I tried going from 5w30 to 10w40 with a bottle of lucas. now the noise is worse until it reaches running temperature.. is this too thick too run in these 5.3's?
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