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I have 2015 Silverado 5.3 it has 34000 miles on it . The other night I took it out for a ride at idol and low rpm it was 40 psi as soon as I hit 4000 rpm it jump to 80 psi has any e one else seen this? Thanks for any help.
 

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Well the oil pump is driven off the engine so as the engine revs faster, the oil pump pumps more so higher pressure makes sense. Are you concerned?
 

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I have seen spikes around that. You're good. Check your oil level just in case, but should be fine.

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