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I would try it without the lucas crap in it and report back- I tried it in my work truck and in knocked down the pressure by 10psi - bad enough that the pressure light would come on at a hot idle.

I was P.O.'d because it takes 12qts of 15/40 and a $25 filter- cheaper than 7k for a new motor though.




Thanks, will do. Would he be better off just tossing a quart of 20w-50 in with the 15w-40 for a little thicker mix? thanks everyone.

72 Challenger - will be sublime, little 340 904, 8 3/4" - Under Construction