- Oct 11, 2002
- Pullman WA
I've read the test results and concluded that chevron supreme and havoline are good oils, I'm curious to know who uses these oils even though they don't have moly?
quote:Definitely cold weather. The longer your engine spends in warm up mode the faster the GM oil life monitor counts down to zero. Here is an article describing how the GM oil life monitor works: http://service.gm.com/techlink/html_en/pdf/200003-en.pdf#dst03
Originally posted by Bill Williams: Hey! I use them both. I put Chevron Supreme 5-W-30 in my 2002 Grand Am for two oil changes. The first one had the analysis posted here by Terry Dyson. The 2nd one has been sent to Terry for another analysis,and the results should be posted here soon. I had trouble locating Chevron Supreme when I changed oil last week so I put in Havoline 5-W-30. My ( change oil soon )lite came on with only 5,342 miles of service.. Much sooner than last time. Cold weather maybe? Bill