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By 2016 Sierra Owner · Posted
It appears to be GONE finally!! I don't see it in any of the new pics just posted today. It's about time. 🤣 -
By 2016 Sierra Owner · Posted
Where is the SLT? That is a popular trim! -
By asilverblazer · Posted
I know the system does not sample the oil, though I would expect slightly more sophisticated algorithms than what you posted or what I found in 18-NA-125. The coolant temperature readings and how it alters the oil life are probably the least understood in the algorithm. Nothing definitive is published regarding how those temperatures are used that I can find beyond the bulletin I referenced. Also, I agree with the disconnect between coolant temperature and oil temperature. Maybe they aren't concerned with oil temperature (directly) or can extrapolate what the oil temperature should be based on coolant and ambient temperature... all speculation on my part how they are using coolant temperature to 'degrade' oil life, I doubt it to be a simple calculation. I found lots of suggestions that it monitors/uses other parameters, including oil temperature directly, as well as someone saying injector pulse width has a heavy hand in the algorithm. I KNOW a bunch more schooling, time and money than what I have has been spent on the OLM than what I ever could, to end up at a maximum OCI of 7500 miles. -
4 1 post posters, and only 1 of them returned to the site after posting, none have returned to the site after 2023, so you aren't going to get a response from any of them. -
have you considered asking a dealer these questions?
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