So I have an 07 silverado classic 4.3. I have had it since january and about for one month I didnt drive the truck period. Currently it has about 13,500 miles on it, and the oil was changed at 1000 miles to mobile 1 synthetic and a *doh* fram filter. The OLM does not have a percentage (its a WT), and the change oil message has not come on. Should I keep it going or change it. I would like to get the max out of oils, that would be nice, but again protection. About once every two weeks the truck will do heavy hauling (not towing, like 2,500 lbs on the racks) for about 100 miles but that is it. So opinions please!
4.3 silverado OLM should I be getting worried?!
- Thread starter dreadedws6
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Wait so the Mobil 1 has 12,500 miles on it? Yes I would definitely change it.
There's no point in changing it now; the damage is already done. You might as well drive it until it seizes up and hope the dealer replaces the engine under warranty.
Triple_Se7en
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Your new vehicle warranty manual allows 12.5K oil changes????
Did you ever consider that a percentage of those OLMs may be faulty? I have a GM & the first OLM indicator was at 13.2K
I use the old fashioned method.... counting mileage per OCI. It's a better safeguard for my engine.
dealer told me to just follow the OLM
Triple_Se7en
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The dealers says stuff like that - they want your service/repairs after that warranty expires.
sorry for the double post but.
I dont get it people are running 10k OCI, and i run a 13.5 and all of a sudden my engine is going to seize??
Its not liek I neglect it, the oil is topped off every month about 1/4 quart, so its not like its going to be running dry.
I dont get it people are running 10k OCI, and i run a 13.5 and all of a sudden my engine is going to seize??
Its not liek I neglect it, the oil is topped off every month about 1/4 quart, so its not like its going to be running dry.
Triple_Se7en
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You need a UOA done. It's the only way to determine length of oil life.
Please copy & paste where anyone here said your engine will seize?
The concern here is your engine oil life. If you like to take risks, then stay at 12.5K OCIs.
Please copy & paste where anyone here said your engine will seize?
The concern here is your engine oil life. If you like to take risks, then stay at 12.5K OCIs.
That would be me, but didn't say it WILL seize, I just meant that an oil change at this stage of the game would be pretty much pointless.
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Do you assume everything you hear here is valid? There are plenty of "you'll shoot your eye out, kid" types on the internet. If you follow all of them you'll end up buying titanium head liners in case there's a stray meteor shower. We've got them all here, baby.
That being said, just for your peace of mind, do a UOA. You'll probably find everything fine or well within acceptable conditions. We've had a few OLM owners that have gone out to the end and done UOA. They showed, on balance, that the oil was due for changing. The margins were fairly close, IIRC. Well, below BITOG background noise standards ..but not "damaging" by any means.
Either that or listen for the connecting rod bearings go knock knock.
Quote:
Either that or listen for the connecting rod bearings go knock knock.
I would have also quoted your other two posts with this reply: ARE YOU KIDDING??? But thought it was too much work.
To the OP, if you are worried about it, change it now and reset the OLM. I've run UOAs when my OLM indicated 10% at 8K to 9K miles and the UOA indicated there was still plenty of life left to my synthetic oil, TBN fine, viscosity fine, etc. But what do I know, I'm just a master technician that has worked directly for GM, at independent shops, and at a multi-line mega-sized GM dealership?
well changing it tomorrow and doing a UOA everything should be fine and dandy after talking to my buddy who has an 04 4.3 and 70k miles and his OLM has him change is DINO at about 15k (he has the same deal as me, drive 150 miles to work, park, then drive 150 miles back all highway)
Thats pretty easy service for oil. Not surprised its letting you run it so long.
I was being slightly sarcastic yes because it pains me to read threads like this. The OP had a brand new truck with a brand new engine, but in the interest of getting the most out of his oil, he decides to push the oil to over 12,000 miles. Mobil 1 is very good, but not THAT good.
A 5 quart bottle of Mobil 1 at Walmart is $23.67; how much does a new engine cost?
LOL, thats what came to mind when I read the original post, when in doubt change it out, I'm guilty of running my oil too short a time, maybe its just an oil changing fetish.
Not sure why he is getting chastised for using the OLM.
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Well, I think everyone has to keep this in perspective. I can assume that most people here read the UOA section from time to time. Now there's a member here and a member there that may have a problem that can be improved upon. Air filter or its plumbing ...GM V6 coolant leaks ...fuel issues ...etc..etc. But none of it spells impending doom for an engine. If you saw TallPaul's post torn PCV hose UOA's you saw Pb in the 500 ppm range that took a long time to come down. Etc..etc..etc. The guy is checking the oil and adding as needed ...so no "numbskull" factor there.
I don't see why this guy got such a rough treatment!
I don't like OLM's...but I still use them, sort of.
I just changed my Silverado Duramax Delvac 1 fill at 30% remaining on the OLM. I decided it was time.
He ran 12,500 miles on Mobil 1 and the OLM didn't tell him to change...why shouldn't he be OK? [ unless the OLM is defective, which I doubt, or the OLM was reset accidently which is possible ]
I think anything past 7K is not worthwhile, but I ran a UOA at 10K with Redline and it was perfect.
If this were my Silverado; I'd pull a midstream sample to save for a UOA and change the oil immediately.
If a Blackstone oil analysis kit isn't available then I'd use an ultra clean glass contaner with a lid... like a clean bottle that contained spaghetti sauce.
I don't like OLM's...but I still use them, sort of.
I just changed my Silverado Duramax Delvac 1 fill at 30% remaining on the OLM. I decided it was time.
He ran 12,500 miles on Mobil 1 and the OLM didn't tell him to change...why shouldn't he be OK? [ unless the OLM is defective, which I doubt, or the OLM was reset accidently which is possible ]
I think anything past 7K is not worthwhile, but I ran a UOA at 10K with Redline and it was perfect.
If this were my Silverado; I'd pull a midstream sample to save for a UOA and change the oil immediately.
If a Blackstone oil analysis kit isn't available then I'd use an ultra clean glass contaner with a lid... like a clean bottle that contained spaghetti sauce.
"Not sure why he is getting chastised for using the OLM".
"I don't see why this guy got such a rough treatment"!
Keep in mind he's being counselled by the resident expert on all things oil related, Merkava 4. I really think it's time to start an Ask Merkava 4 sticky so that his expertise is more readily accessible to the BITOG community. He always has an answer to every dilemna and they are always spot on correct.
"I don't see why this guy got such a rough treatment"!
Keep in mind he's being counselled by the resident expert on all things oil related, Merkava 4. I really think it's time to start an Ask Merkava 4 sticky so that his expertise is more readily accessible to the BITOG community. He always has an answer to every dilemna and they are always spot on correct.
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