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Lately ive noticed my oil pressure gauge going higher than usual, especially when the car is cold, on cold days. It will surge to 60 psi and even to 80 psi sometimes. The surging is consistent with RPM's. At idle, pressure is a little under 40psi. Im using royal purple 5-30 and a K&n oil filter. Once the car warms up the pressure stays around 40 PSI and does not surge anywhere past 60psi even when i hit the higher revs.
I checked the oil level and its within the crosshatch area.
Is this oil pressure surging normal or does my car have a problem ? (bad oil ? clogged oil filter ? )
2007 C6
Last edited by spin-doktor; Dec 4, 2008 at 11:27 PM.
don't think it's anything to worry about. even 5w-30 gets a little thicker with cooler weather (try Minnesota in the winter if you want really thick oil!). thicker oil means higher pressure. as it warms, it thins.
If you let the car warm up more before you drive it you wont notice the surge. I let mine warm up for about 6 mins before I drive it (its modded as well) and I dont get oil press. surges. But it is normal.
Suggestion, do not go WOT until you are at operating temperature. I usually keep mine under 2500RPM (or lower) until that time. Depending on the temperature outside, it could take up to 10-15 minutes.
Suggestion, do not go WOT until you are at operating temperature. I usually keep mine under 2500RPM (or lower) until that time. Depending on the temperature outside, it could take up to 10-15 minutes.
Red Cell.
...Most here say to let your oil temps get to at least 160 degrees before going WOT, and you will have higher PSI until then with colder oil -- perfectly normal............Lots of past posts on the subject or oil temps and pressure........