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Central Illinois |
https://www.gm-trucks.com/forums/topic/263732-oil-consumption/
From a post by: "Grumpy Bear"
"I have a theory on these motors oil consumption. For a host of reasons these motors, which are built with really narrow low tension rings are very fussy about cleanliness. Even the newest DEXOS licensed oils still allow a slow build up over time of carbon/varnish around and between the ever so sensitive second and third rings. I don't think they even have to stick. Just fill the 'ditch' in the second ring. There are fewer than a handful of PCMO's with enough natural solvency to prevent this from happening AT THE OEM RECOMMENDED OCI's. The few that do don't have a DEXOS license. People being what they are, protect the warranty first and the motor second. IMHO of course."
He thinks changing oil more often would help, "takes longer to get to the cliff but it falls off faster" is close to his quote in another post.
Edited by Ron (Cen. IL.) 5/5/2024 21:28
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GM 6.6 gas engine using oil?
