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Ask Mobil Archive -
Oil Pressure
DateQuestionAnswer
05/08/2012
What Causes Spikes in Oil Pressure?
Why do we see spikes in the automotive gasoline engine lubrication oil pressure during cold weather?
If referring to the initial oil pressure at start-up, this is because the oil has thickened overnight, and pressure will likely not be in steady until the oil reaches normal operating temperature. Syn...
10/25/2010
Will Switching to Mobil 1 Improve the Pressure in a Older Pickup?
I bought a 1982 GMC S10 with 65,000 actual miles that had been sitting for 9 years. After using Mobil 1, the oil got very dirty very fast. I fear the original owner never changed the oil. (It still ha...
We would certainly recommend giving Mobil 1 another try.  Mobil 1 is specially formulated with advanced cleaning additives to protect engine parts. It is entirely possible that Mobil 1 was doing what ...
02/11/2010
Low Oil Pressure in a Jeep Grand Cherokee
I have used Mobil 1 Extended Performance as long as it has been available in my 2001 Jeep Grand Cherokee 4.0 4 wheel drive SUV. I now get low oil pressure alarms after the engine becomes very warm. Ga...
Have you asked your mechanic about this issue? We would start with looking at the oil pressure-sending unit. We think there could also be some other mechanical issues that may be causing this issue.  ...
02/08/2010
Oil Pressure After Switching to Synthetic Motor Oil in a High-Mileage SUV
I have a 1999 Chevy Silverado 4x4 with a 5.7 Vortec. It has 164,000 miles on it and I just began putting Mobil 1 in it after I purchased it a few days ago . I noticed the oil pressure is hanging aroun...
Oil pressure will vary somewhat depending oil type and viscosity grade. There will also be some oil pressure change versus engine speed, which is not unusual. We do not think you have an issue to worr...
06/15/2009
Keeping Oil Pressure Up in a Chevy Truck
My daughter has a '98 Chevy 4x4 truck with 127,000 miles on it. After the oil gets hot, the oil pressure drops to around 20 lbs. She runs 5W-30. Short of rebuilding the engine, would it help to run hi...
It is not unusual for a higher mileage vehicle to run at lower oil pressure and this alone should not be of any concern. This is primarily due to larger clearances due to normal wear and tear. We reco...
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