Originally Posted By: Ihatetochangeoil
Originally Posted By: oldmaninsc
Originally Posted By: WobblyElvis
In my opinion the OLM is very conservative.
I agree. The owners manual for my Impala states to change the oil within 600 miles once you get the change oil message. I usually try to take it down to almost zero, but a lot depends on what is happening in my life at the time.
I'm always amused with people that think the OLM is just a toy. I guess GM engineers are smart enough to design the car, the brakes, the various safety systems, but not smart enough to design a computer algorithm to tell you when to change the oil? LOL!
GM engineers did not engineer into the calculations the use of bypass filtration, synthetic oil, or test lab analysis. I'm using all the above and I ignore the OLM. Which do you think "GM engineers" would give precedence to, test lab analysis or their own OLM?
Amazon sells a patented product to check the condition of your oil:
http://www.amazon.com/Lubricheck-Motor-O...ords=oil+tester I bought one; at the very bottom of the instructions, if you question results, it refers you to a testing lab.
Yes, the OLM is programmed to be conservative, but it is NOT intended to take precedence over lab analysis.
Boy you really missed the point. Where did anybody talk about lab analysis or bypass filtration? If you trust a 50 dollar qizmo you found on Amazon, that's your business. And how many people actually do UOA? Granted some do, but I'll bet even of the members here it is a fairly low number - at least percentage wise.
If that's what floats your boat - go for it! I was referring to people who arbitrarily pick a set mileage because they think they know better than GM (or fill in the blank) engineers.
In the end - it's their money to do with as they please, whether it's on needless oil changes or lab analysis. I just think it's funny!