Oil pressure?
#1
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What could cause an low oil pressure after oil change? I had a friend of mine change the oil in peggy and since then shes been throwing the low oil pressure, as i continue to drive after 10 mins or so it builds up. the only thing that was different is i used the high mileage 10-40 oil.
#3
Senior Member
True Car Nut
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assuming you verified the level is good. high mileage oil is no good. i tried to run it in a couple of my cars and it acted like i had 2 month old gas in it the whole time.
Last edited by jwfirebird; 07-30-2014 at 05:48 AM.
#5
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maybe it depends what kind, i use regular valvoline changed every 5k, i had probably 180 when i tried valvoline high mileage on my bonnie and it ran pretty rough, but i dont think it lost mileage. had maybe 160 when i tried it on my old 03 monte and that lost some mileage and ran rough as heck till i changed it back
#6
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I'm running Mobil1 Super 10w30 high mileage formula, seems like a quality brand at a good price when I changed my oil a couple months ago. Although I don't really think there are too many considerable differences between oil brands these days (when comparing equal weights).
To the OP, I though most 3800-II'* suggested 10w30... does yours specify 10w40?
To the OP, I though most 3800-II'* suggested 10w30... does yours specify 10w40?
#8
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Why did you use 10w40? Technically that is a bit heavier/thicker than 10w30. Slower moving oil, which it would be on start-up before the oil gets hot, may be tripping a low pressure sensor.
Generally I'd say stick with manufacturer recommendations on fluids, unless there is a real compelling reason to switch to something else.
Generally I'd say stick with manufacturer recommendations on fluids, unless there is a real compelling reason to switch to something else.