Sparky
Member
- Dec 4, 2011
- 12,927
After servicing a dozen vehicles a day for the last 6 months, I really don't trust the OLM systems in vehicles. By the time most of the computers across different manufacturers say to change the oil, the oil is black and looks overdue for a change to me. Not only that but most people don't check their oil level once between changes and run them quarts low.
Last time I changed the oil in the TB the oil change light had not came on yet and I have no idea how many miles were on the oil but I know for sure I'm likely never going by the OLM on the TB again. Shit was nasty that came out. My DD I don't really care about and I'm 4.5k deep in its current oil but I treat the TB better.
Not telling anyone to not go by the OLM, just saying that after 13 years of depending on it telling us when to change the oil (two different GM's), I no longer trust it. Just my opinion, you make your own after observing the oil a few times when you change it.
I go by the OLM which has resulted in an average of about 10k miles between changes (one was all the way up to 14k miles back when I did a ton of highway driving), 215k miles later tells me I ain't killing it lol.
The "OLM" in my 99 Camaro however seems to just turn the light on at 7k miles regardless. But I don't follow it because the engine is far from stock so I change it every 5k which equates to about once a year (summer only car).