oil pressure sudden drop - The 1947 - Present Chevrolet & GMC Truck Message Board Network

iamseth · 02-04-2011, 05:30 PM

My 400 bigblk has never had low oil pressure. The gauge has no numbers so ill refer to it like the gas gauge: Idle: 1/4 full, Driving (highway): 3/4 full. Until today... This morning, after accumulating about 2 inches of snow in AUSTIN, TX last night, oil pressure was fine. Then when I left work around 2:30, oil pressure was at 1/4 full while driving and all the way to empty while idling.

Should I be fretting over this? I recently switched to 20w/50 oil. Could this be the problem?

I've read a few posts about this issue, I'm just a little concerned about the sudden drop, that's all.

02-04-2011, 05:30 PM	#1
iamseth Registered User Join Date: Jul 2010 Location: Austin, TX Posts: 29	oil pressure sudden drop My 400 bigblk has never had low oil pressure. The gauge has no numbers so ill refer to it like the gas gauge: Idle: 1/4 full, Driving (highway): 3/4 full. Until today... This morning, after accumulating about 2 inches of snow in AUSTIN, TX last night, oil pressure was fine. Then when I left work around 2:30, oil pressure was at 1/4 full while driving and all the way to empty while idling. Should I be fretting over this? I recently switched to 20w/50 oil. Could this be the problem? I've read a few posts about this issue, I'm just a little concerned about the sudden drop, that's all.



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