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Jeep says 8000mi for my Grand Cherokee, that's what I'm doing. I have a pretty good mix of city/highway driving since it's my commuter, and it road trips fairly often. When I took it in for the first change, they put their 3000mi sticker on the windshield, which promptly got ignored. It'll go back in another 8000mi.
Jeep says 8000mi for my Grand Cherokee, that's what I'm doing. I have a pretty good mix of city/highway driving since it's my commuter, and it road trips fairly often. When I took it in for the first change, they put their 3000mi sticker on the windshield, which promptly got ignored. It'll go back in another 8000mi.
Guys. You have to admit that both engines and oils got much better in the past 20 years. Car companies routinely fill new cars with synthetic and even fossil oil benefits from synthetic additives. This all adds up to increased oil change intervals. Following fossil oil change intervals when using synthetic defeats the purpose of using synthetic in the first place.
I even notice around 2,000 miles of an oil change, the oil is already pretty dark, so I can't imagine waiting 7,500 miles or more.
Dude the oil will get dark whether its dirty or not. Color gives almost no indication of the condition of the oil.
Quote:
Originally Posted by sdlife619
Even if the maintenance manual says to change your oil every 7,5000 or 10,000 miles, that is just ridiculous. I wont do it, it's almost like the company wants you to wear out your engine faster by waiting so long to change your oil. Do they mention driving conditions? Or if you live in urban setting with a lot of air pollution? Live in a major city with heavy traffic? I mean all these factors come into play when it comes to determining if you need to change your oil more frequently or not. But to go by an "All in one" basic approach for an oil change, isn't a good idea.
My GTI needs synthetic every 10k miles. I plan to follow that because I drive mostly highway with little stop and go or city driving. Recommended maintenance schedules are for typical driving conditions. Obviously if you have "heavier" conditions your maintenance schedule may vary.
In regards to the 3000 mile OCI, most engines are now lean burn and just don't make the acids/particulate of the old engines. We no longer have carbs so using a much heavier oil is no longer necessary to compensate for the fuel dilution when towing. That's for most engines. But you probably would want to know that the same does not apply for direct injected engines. GM replaced quite a few of their 3.6 direct injected engines before they reprogrammed their OLM for much shorter OCIs. We've seen Ecoboost oil reports that the oil is pretty much had it at 3000 miles. If you have a conventional engine, read and understand the owners manual. If you have one of the newer direct injected engines, I'd spend the money for an oil analysis. The 25 bucks will be money well spent.
Only a completely clueless moron would make this statement. Just what does moron think happens to the oil that is drained out? It's recycled via either Chevron ISO/SYN or M/Es Raffinate process. Either way it comes back to you as a GpII+ or a GPIII base oil. It's not thrown out on the ground nor is it pumped into the oceans. Every time you buy that high dollar synthetic oil, you need to know that some of it is most likely recycled oil. But before anybody gets ticked over it, recycled oil has already been thru one shear cycle. It's already sheared about as much as it's going to. This makes for a very stable base oil.
You obviously don't live in a rural area of the country. Lots of bumpkins dump their old oil anywhere. Do you think they are going to put it in containers and drive into town to recycle? Dream on.
And do you think all stations recycle oil. Not in my town:
"Employees at the Heartland-owned Jiffy Lube at 8509 Burnet Road illegally discharged oil and wastewater into the city’s sewer system “with the knowledge of regional and district managers,” according to the release."
Besides that aspect there are environmental issues with the making of the oil in the first place. It also takes energy to manufacture that oil and bring it to market. In addition my city will not recycle used motor oil bottles:
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