Oil Changes
Melting Slicks
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
Maybe so, but you're not quantifying your above assertions. Nor is anyone else here. You're just repeating things you've heard and or read, and have made up your mind that; "well, it must be true, since that's what "everyone " says." There's a lot more to it than that assumption. Recently there was a member that directly published/quoted an oil analysis report that pretty much blew your assertions, and others, out of the water on these low mileage models you and others are parroting. In fact, the oil monitor and timelines are basically useless in oil analysis - according to the test results. But that's been known here for years. His analyzing firm's recommendation was for almost a tripling of his oil stats. If you want to argue the results? Have at it. But it pretty much dispelled the standard myths and recommendations that are contained in most of these armchair oil advice threads...
Furthermore, I've also discussed this topic with a Mobil 1 Racing engineer who verified this information, although he did state that it isn't as important today as it was decades ago because oil technology has improved greatly. Before retiring I did contract work with Exxon-Mobil and have had numerous discussions of this topic and others with petroleum engineers in their employ. From the mouth of GM, the service manual of my 1966 Corvette had a section in it warning of "crankcase dilution" and the dire effects of allowing it to form sulfuric acid and cause cylinder pitting. I believe these are all valid sources of information.
So although I may be commenting on this forum from the comfort of my armchair I'm merely passing along what I've learned from the above sources over about 60 years of pursuing this hobby. Basically I'm saying that it is wise to avoid shutting down an internal-combusion engine before the oil has been sufficiently heated. If you're disputing this I'd like to see your evidence. If not, I'd like to hear specifically what I said in my earlier post that you don't agree with.
Safety Car
Joined: Jul 2018
Posts: 4,303
Likes: 2,055
From: Margate, FL
I never understood why people don't follow or trust the OLM - worse case is around $100 in maintenance a year. Also I thought everyone knew (and accepted) that multiple short trips create more engine wear then longer trips. This Ask Tadge post gives the most complete answer about time vs mileage vs oil temp: https://www.corvetteforum.com/forums...post1598341716 Personally I think the OLM is great - it removes any guess work, the car just tells me when the oil needs to be changed. Is it conservative? Could you go further / longer between changes? Sure, but why? To save a few bucks?
