BLK 68 R/T
Well-Known Member
- Local time
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- Jan 10, 2016
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It worked just fine with the 15w40...if it ain’t broke don’t fix it lol.Why not go to 10w40 at those temps?
I wouldn’t be worried about 3 seconds to build pressure. Now if it has to crank over a few times when cold and then run for 3 seconds that might be cause for concern.