[ember1205]

Originally Posted by az4783054

Don't lecture. It was a suggestion if an owner is concerned about 'bad' oil remaining in their engine beyond the OLM reading.

Some owners still think changing the oil at 3000 miles is necessary. It's not with synthetic oil. Spend your money in any manner you want.

I wasn't lecturing. I asked a legit question as to why one would go that route instead of just changing the oil.

[nancygrl]

I always reach the mileage mark between oil changes. The lowest I've ever gotten to is 25%. Love driving it too much to let it sit idle for too long. Luckily I live where I can drive throughout the year

[enzia35]

Originally Posted by Aragorn

I had been wondering when/if I would get a prompt like this and it finally happened, with 6% oil life left. I’m a bit surprised it didn't turn on sooner. Barely have 3k miles on the current oil so I’m not in a rush to change it. It has almost been a year though.

Mine showed up at 7%. The Oil Life Monitor is based on miles driven and time.

[Aragorn]

Originally Posted by enzia35

Mine showed up at 7%. The Oil Life Monitor is based on miles driven and time.

Ok, so pretty close. On cars I’ve had in the past , the reminder would come on around 20% left. Big difference compared to these cars.

[Wyzz Kydd]

I drive mine, 43,000 miles in about 2.5 years. I get about 6,000 miles between oil changes and change the oil between 10-20% life.


I’m happy to report that I have never had to add oil between changes. She doesn’t burn a drop.

[Aragorn]

Originally Posted by Wyzz Kydd

I drive mine, 43,000 miles in about 2.5 years. I get about 6,000 miles between oil changes and change the oil between 10-20% life.


I’m happy to report that I have never had to add oil between changes. She doesn’t burn a drop.

Nice, I did have to add half a quart last time.

[Jeb114]

Wow a lot of good oil flushed down the toilet.

[Aragorn]

Originally Posted by Jeb114

Wow a lot of good oil flushed down the toilet.

I swear my oil is almost clear.

[ctrlz]

Originally Posted by Aragorn

I swear my oil is almost clear.

My understanding is it's the additives that start to break down at the 1 year mark, not the oil itself. That is START to break down, not "are useless" at 1 year.
If you don't feel like changing the oil at 0% on the OLM, I think you'll be fine for another 6 mos./1500 miles.
3000 miles and oil that still looks like honey means mostly low rev miles to me. Lower revs means less blow-by gases for the oil to absorb.
If in doubt, send a sample off for UOA and they'll tell you how much life is left.

[Aragorn]

Originally Posted by ctrlz

My understanding is it's the additives that start to break down at the 1 year mark, not the oil itself. That is START to break down, not "are useless" at 1 year.
If you don't feel like changing the oil at 0% on the OLM, I think you'll be fine for another 6 mos./1500 miles.
3000 miles and oil that still looks like honey means mostly low rev miles to me. Lower revs means less blow-by gases for the oil to absorb.
If in doubt, send a sample off for UOA and they'll tell you how much life is left.

Good info, thank you, but I will probably change at zero.

[GroundhogSS]

There have been some good articles posted around here in the past about the gm oil life monitor. It's considered to be pretty accurate. It isn't only about time and mileage. It also considers temperature, speed, acceleration and other performance metrics.

[FarmerFran]

Originally Posted by Jeb114

Wow a lot of good oil flushed down the toilet.

I take mine to the facility but not that one. SHEESH

[redcoats1976]

i change mina at 5,000 mile intervals.usually about 3 changes a year.

[Mark R]

Originally Posted by 2SS Capt

I just figured, what the hell... I just spent over $50k on a car, if I blow $100 unnecessarily on an oil change too early, so be it... Small price to pay for peace of mind... I will agree, at 500 miles, the oil coming out looked VERY good (I didn't open the filter), but I probably could have gone to at least 1,000 without issue (all my other cars I did at 1,000), to me it is just cheap insurance, if I throw away $100 of "good" oil, so be it... I'd rather err on the side of safety/conservativeness...

And how did the diff fluid look? That stuff turns nasty real fast.