Addicted To Boost Posted January 28, 2011 Report Posted January 28, 2011 I just changed the oil on my SE, I know it calls for 5w30, but wally world had a sale on 5 qt jugs of Motorcraft Semi-synthetic. So I got a jug of the 5w20 instead of the 10w40 and changed my oil... now when the car is hot after driving half an hour on the highway, my oil pressure gauge needle is hovering right above the red zone when hot at idle. At 55 MPH, the oil pressure is a steady 40 PSI... is this reason enough to change out the oil with a higher viscosity? I didn't think it would have made this big of a difference... Before pic when I had 5w30 in it, sat approximately halfway between 10 and 40 PSI: And after pic taken today at hot idle with 5w20... needle is hovering like 2 millimeters above the red zone: Quote
jake91 Posted January 28, 2011 Report Posted January 28, 2011 yeah get back to a high viscosity Quote
Addicted To Boost Posted January 28, 2011 Author Report Posted January 28, 2011 Really? I mean, the only time its that low is at idle, otherwise its fine... just seems like money down the drain if I changed it now with ~150 miles on that oil... Quote
Addicted to eaton Posted January 28, 2011 Report Posted January 28, 2011 if it were i. id check the sender to make sure its good. but other then that... no i would not change it out lol. the 2.8 can take it! im kinda on the fence. could waist the oil and change it and be out 20$ Or you could drive it as is. and risk messing up the motor. I still see it Highly unlikely you will mess the motor up. Quote
Addicted To Boost Posted January 28, 2011 Author Report Posted January 28, 2011 A metal core AC Delco PF 52 Quote
White93z34 Posted January 28, 2011 Report Posted January 28, 2011 Is it an ecore ac delco? IE plastic cage POS that they sell in many places. I have had a POS ACD cause very similar issues, I switched to a quality filter and the issue never returned. Quote
gp1991 Posted January 28, 2011 Report Posted January 28, 2011 yeah quality like a fram (sarcasm) Quote
BXX Posted January 29, 2011 Report Posted January 29, 2011 I love metalcore! oh, wait:lol: Get that 5-20 the hell outta there unless you wanna risk trashing your bearings. 5-30 is bad enough in our uber high bearing clearence engines (sorry guys, the imports know how to build a tight bottom end:thumbsup:) Quote
xtremerevolution Posted February 14, 2011 Report Posted February 14, 2011 http://www.carbibles.com/engineoil_bible.html Flushing oils These are special compound oils that are very, very thin. They almost have the consistency of tap water when cold as well as hot. Typically they are 0W/20 oils. Don't ever drive with these oils in your engine - it won't last. (Caveat : some hybrid vehicles now require 0W20, so if you're a hybrid driver, check your owner's manual). Their purpose is for cleaning out all the gunk which builds up inside an engine. Note that Mobil1 0W40 is okay, because the '40' denotes that it's actually thick enough at temperature to work. 0W20 just doesn't get that viscous! Read more: http://www.carbibles.com/engineoil_bible.html#ixzz1DyMh8FJb At operating temp, 5-20 should have the same viscosity as the aforementioned 0-20. Quote
mra32 Posted February 14, 2011 Report Posted February 14, 2011 I think i put 10-40 in my car once. Smelled like gear oil. I put 20-50 in my kawasaki and its really hard to pour Quote
GOT2B GM Posted February 15, 2011 Report Posted February 15, 2011 Just stick with the 5w30, hell even a 5w40 would work quite well. 2.8's have oil pressure issues when hot to begin with without running water for oil. Quote
Addicted To Boost Posted February 16, 2011 Author Report Posted February 16, 2011 It has SuperTech 5W30 full synthetic in it now, looks like it has much better pressure when hot. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.