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Originally Posted by fourfourto
How many are going to 12,000 miles on the oil change 
I cant let myself go past 6,000 using Moble 1 synthetic.
Im planning on getting a lot of miles(200,000 +)out of the 3 
I still use the monitor I just dont reset it at 2nd oil change.
I got my under 10% warning a couple weeks ago.
Changed the oil this weekend and reset. |
The oil monitor system on the GMs is pretty accurate and has been backed up by oil testing with CONVENTIONAL oils. I use Royal Purple and change it when the monitor tells me to. It's been going 10-12k. Changing it any sooner is a waste of oil.