07 Colorado OCI
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Triple_Se7en
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Sounds like a good plan. Any SM GF-3/4 name-brand synthetic oil will be plenty-fine for 5K OCIs.
I have the Colorado also. My first OLM signal came on at 13.4K -- the second one came on at 26K --- like 12.6K later. I change my synthetics at 5K also.
I have the Colorado also. My first OLM signal came on at 13.4K -- the second one came on at 26K --- like 12.6K later. I change my synthetics at 5K also.
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I follow the GM oil life monitor on my Saturn. The manual states it can go off anywhere from 3,000 miles to 6,000 miles (max). For me, it usually goes off close to 5k miles. It takes into account cold starts, idling, RPMs, engine termperature etc. Therefore, the more highway driving you do the longer your OCI will be.
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i dont think works too great hasn't gone off in 13K
I have not seen one UOA on this site that has shown the OLM not to be a reliable indicator of when to change oil....
i dont think works too great hasn't gone off in 13K
I have not seen one UOA on this site that has shown the OLM not to be a reliable indicator of when to change oil....
I think there are way too many factors going in outside the 'perfect' operating conditions. In the real world, thresholds are exceeded that can't be duplicated in testing all the time.
I don't agree with some OLM that let you go 10k miles on dino juice.
I don't agree with some OLM that let you go 10k miles on dino juice.
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I don't agree with some OLM that let you go 10k miles on dino juice.
feel free to post some examples....
I don't agree with some OLM that let you go 10k miles on dino juice.
feel free to post some examples....
JTK
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The OLM on the GM Atlas/Vortec series engines (2.9L, 3.7L and 4.2L) do go far beyond the mileage that most are accustomed to. These engines do have large oil sumps, which is the main factor IMO. I personally wouldn't go beyond 1yr/12Kmi with ANY oil in there since I like to 'check' things out more often than that. However, if you search UOA data for these engines, they do well on extended drains. Going 12-14Kmi between OCI probably wouldn't harm them a bit.
Joel
Joel
Triple_Se7en
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Originally Posted By: GMFan
I don't agree with some OLM that let you go 10k miles on dino juice.
I agree - unless one leases or sells their vehicles prematurely - thus passing along a likely 150K dirty engine to someone else (or) a UOA says everything is fine.
I don't agree with some OLM that let you go 10k miles on dino juice.
I agree - unless one leases or sells their vehicles prematurely - thus passing along a likely 150K dirty engine to someone else (or) a UOA says everything is fine.
Do you guys think a syn is a waste for a 5k oci in which i should just go with a quality dino like pennz or havoline. heres my driving conditions mon - friday i have a 24 mile commute at 50 - 60mph round trip to work, and on the weekends one 30mile highway commute one way then a tad of in town driving here and there. and im in jax fl which gets hot and not terribly cold in the winter.
Definately stick with conventional oil for your service and intervals. Syn would be a waste of your resources $$
Originally Posted By: Bryanccfshr
Definately stick with conventional oil for your service and intervals. Syn would be a waste of your resources $$
I figured someone would say that, I just dont feel comfortable going past 5k. I guess ill see what kinda conventional deals we got goin on and stock up, i do want to stick with one brand.
Definately stick with conventional oil for your service and intervals. Syn would be a waste of your resources $$
I figured someone would say that, I just dont feel comfortable going past 5k. I guess ill see what kinda conventional deals we got goin on and stock up, i do want to stick with one brand.
Whatever makes you feel comfortable. Just run the proper spec.
My vote would be for an occasional UOA, which would be the only definitive way to answer your original question. We've had many discussions here about the GM OLM, and how it works. Based upon my understanding of the system, and particularly how it's carefully calibrated to each particular vehicle in which it's installed, I think you'd be very safe following its "recommendations," even when using a garden variety non-synthetic. Adding a UOA or two will add a measure of objective confidence to your decision. Your 5k approach is without question safe, but it's most probably severe overkill as well.
Originally Posted By: BrianWC
It has 10,150 miles and the OLM has never gone off.
LMAO!
too bad so many peeps put their faith and trust in this worthless gizmo.
It has 10,150 miles and the OLM has never gone off.
LMAO!
too bad so many peeps put their faith and trust in this worthless gizmo.
Originally Posted By: BigBadf350
Originally Posted By: BrianWC
It has 10,150 miles and the OLM has never gone off.
LMAO!
too bad so many peeps put their faith and trust in this worthless gizmo.
Can you present your data to back this statement up?
Originally Posted By: BrianWC
It has 10,150 miles and the OLM has never gone off.
LMAO!
too bad so many peeps put their faith and trust in this worthless gizmo.
Can you present your data to back this statement up?
Originally Posted By: dave1251
Can you present your data to back this statement up?
i could but i dont want to make the effort. its not that important to me. i have seen many more UOA's that show the OLM to not indicate a correct OCI than ones that do.
you think the man should still be running his break-in oil for more than 10K?
Can you present your data to back this statement up?
i could but i dont want to make the effort. its not that important to me. i have seen many more UOA's that show the OLM to not indicate a correct OCI than ones that do.
you think the man should still be running his break-in oil for more than 10K?
Originally Posted By: BigBadf350
Originally Posted By: dave1251
Can you present your data to back this statement up?
i could but i dont want to make the effort. its not that important to me. i have seen many more UOA's that show the OLM to not indicate a correct OCI than ones that do.
you think the man should still be running his break-in oil for more than 10K?
As for the UOA's I have yet to see one where the OLM is wrong. I would recommend with the money you are saving by using the OLM get an annual UOA to make sure everything is wearing like it should.
As for an breaking in and using an oil for 10K. I have seen and known people to do it. But I like to change the once at 1K. Then 3K. From there I go to my normal OCI of 5-7K.
Originally Posted By: dave1251
Can you present your data to back this statement up?
i could but i dont want to make the effort. its not that important to me. i have seen many more UOA's that show the OLM to not indicate a correct OCI than ones that do.
you think the man should still be running his break-in oil for more than 10K?
As for the UOA's I have yet to see one where the OLM is wrong. I would recommend with the money you are saving by using the OLM get an annual UOA to make sure everything is wearing like it should.
As for an breaking in and using an oil for 10K. I have seen and known people to do it. But I like to change the once at 1K. Then 3K. From there I go to my normal OCI of 5-7K.
I DID change the oil. As I said in my post. I am just pointing out that the OLM has never gone off. I've seen the OLM take oil in a SAAB turbo out to 15k miles or more and the oil has held up just fine. Go to the UOA's and look for saab 9-3 posts by CosmicFlash. You can't convince me an n/a Colorado engine is worse on oil than a forced induction 4 cyl.
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