[Marty McFlew]

My dealer recommends oil changes at every 3000mi in the LT1 engine because they say due to the thin oil used it can be expected to consume oil if you go to the GM recommended 7.5k miles. Dealer says you can go past the 3k miles but to be sure to start checking your oil every 2nd fillup. Is 3k miles way to soon? Seems like a waste of good oil.

[Brisk]

If you drive it aggressive at all I would go max 3,000 miles.

[ZL1 1LE]

Originally Posted by Marty McFlew

My dealer recommends oil changes at every 3000mi in the LT1 engine because they say due to the thin oil used it can be expected to consume oil if you go to the GM recommended 7.5k miles. Dealer says you can go past the 3k miles but to be sure to start checking your oil every 2nd fillup. Is 3k miles way to soon? Seems like a waste of good oil.

Cut the 7,500 in half and go 3,750.

[Glen e]

Originally Posted by Marty McFlew

My dealer recommends oil changes at every 3000mi in the LT1 engine because they say due to the thin oil used it can be expected to consume oil if you go to the GM recommended 7.5k miles. Dealer says you can go past the 3k miles but to be sure to start checking your oil every 2nd fillup. Is 3k miles way to soon? Seems like a waste of good oil.

Ridiculous....... with the new oils......

[BluinSC]

I do 6500 on my SS.

Unless you just love paying money for oil changes I would do at least 6k.

[marknagy13]

Go by what the car says. Remember, the technology was built so you don't have to go by random old numbers that make sense for one car or driver but not for another.

[Zepp]

Unless you're doing a lot of track, it's a waste of money doing it that frequently, even if you're doing it yourself.

[iPODFAN11]

Originally Posted by Marty McFlew

My dealer recommends oil changes at every 3000mi in the LT1 engine because they say due to the thin oil used it can be expected to consume oil if you go to the GM recommended 7.5k miles. Dealer says you can go past the 3k miles but to be sure to start checking your oil every 2nd fillup. Is 3k miles way to soon? Seems like a waste of good oil.

I think your dealer is confusing the truck engines for yours. Camaro runs 5w30 while the truck V8 use 0w20.

Originally Posted by Glen e

Ridiculous....... with the new oils......

I wouldn't want all that fuel in my oil. Ever smelt oil from a DI engine that goes over 3k on an oil change? Holy fuel dilution batman. Think of what that does for long term wear and reliability...?

A second issue is that the particulates entering the oil via blowby gases increase wear rates. A number of OEMs have noted issues with cam-chain wear when they switch from port fuel injectors to GDI. Third, the combination of higher torque and smaller engines inevitably results in increased bearing loads. Many OEMs are looking to reduce viscosity to improve fuel economy and CO2 emissions, but lower viscosity puts these highly loaded bearings at risk. Improved antiwear additive technology will be required to allow a move to very low.

https://passenger.lubrizoladditives3...Big-Hurdle.pdf

[ljc]

I've worked at a dealer's Service Department for many years and I've seen the terrible results of abiding by the recommended 7,500 mile oil change intervals. I would never wait that many miles. Especially now with more vehicles using Direct Injection, it's more important to change the oil more frequently. Use the manufacturer's recommendation as a guideline only...common knowledge and understanding supercedes the manufacturer's thoughts and ideas of "perfect" driving conditions and circumstances that would allow 7,500 miles between oil changes without harm being done.

[Glen e]

I've worked for the car mfrs and dealers for 35 years, yeah I Know all sbout DI And fuel dilution. I change mine at 5000, and after 3 changes, I have never smelled gas in the oil. Maybe 7500 is too much, but 3000 is certainly just as ridiculous.

[MiamiBlueCamaro]

I follow this:

[dpevans]

Hogwash. There are some pretty smart engineers. Oil looses it's film strength or the ability to properly lubricate and the loss of film strength can be measured so unless you run your motor at WOT and burn your oil down stick with the car's computer algorithm that that calculates how the car is driven. The manual says when you hit 100% get it changed by the next fill up. I hit 90% then change it. Anything else you are wasting money, and oil resources. 3k mile oil change is a sales tool used by oil companies to get you to use more. Plugs are good for 100k, are you going to change them at 50k? And by the way I also drive a Northstar with 280k and it still runs strong.

[Martinjlm]

Originally Posted by MiamiBlueCamaro

I follow this:

EXACTLY!!!

Because every driver is different, the condition and the chemical composition of the oil will be different for two cars with the exact same amount of mileage, just based on where and how you drive the car. GM's oil life sensors have been in place for over a decade and constantly measure the chemical composition of the oil. Think of it as a flex fuel monitor but for oil. If you trust the flex fuel monitor when you put E85 in your car, you should consider placing the same amount of trust in your oil life monitor.

If you have the myChevrolet app on your smartphone, it will tell you the current status of your oil at any point in time you chose to check it.

[MGD]

Originally Posted by Martinjlm

EXACTLY!!!

Because every driver is different, the condition and the chemical composition of the oil will be different for two cars with the exact same amount of mileage, just based on where and how you drive the car. GM's oil life sensors have been in place for over a decade and constantly measure the chemical composition of the oil. Think of it as a flex fuel monitor but for oil. If you trust the flex fuel monitor when you put E85 in your car, you should consider placing the same amount of trust in your oil life monitor.

If you have the myChevrolet app on your smartphone, it will tell you the current status of your oil at any point in time you chose to check it.

They do NOT measure the chemical composition of the oil.

They discovered, through various investigations, that oil degradation, in general, followed pathways influenced by service and environmental conditions. The extremes of these conditions, are high-temperature, high-load on one end and low-temperature, low-load on the other. In between is the large operating domain representing the majority of driving conditions. The basic design of the Oil-Life System was intended to characterize extreme operating conditions and most points in between.
While the Oil-Life System does not actually monitor any single quality or physical property of the oil, it does incorporate the use of a highly sophisticated mathematical model. This model applies the known influence of oil service temperature and revolutions to characterize the remaining life.