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My oil pressure used to be around 60psi at 3000 rmp and around 45 at 2000rpm
with an idle at around 30-35psi
In the last year, I have seen some changes though.
At 3000rpm I have about 45psi. I hold responsible the Mobil 1 0W30 for that.
Now that I am running 10W30 though not much has changed. In fact more weird things happen.
Oil pressure may be at 60psi with 3000rpm, suddenly it will drop at 30 for about a minute or less, and then pop up at 45, 50 or 55psi. Then it will keep going between 35 and 55 for a while. This thing will sometimes keep happening 5 or 10 times during an hours drive of going 75mph on the highway.
Any suggestions?
oil pupm?
oil pressure gauge?
or oil pressure sensor ?????
My fuel economy is as always, 21-24mpg, performance is the same and I seem to burn about half a quart of oil in 3000 miles which I consider normal, especially when 2000+ miles are on the highway going 75-80mph.
Any body that has any oil pressure insights please respond !!!!!!
 
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