Quote:
Originally posted by BoostnBenz
I can't see a 123 enjoying a 10k+ oil change interval. I'm sure with a bypass filter it is doable but I haven't heard of many if any people who change their oil more than 10k miles. I wouldn't feel guilty going 5k, maybe a little at 7.5k, but I wouldn't go any higher than that without getting the oil tested.
I'm sure a pretty new TDI could pull 10k on the oil pretty easy but much over that I'd hope it would have a bypass filter. What is the factory oil change interval on those? 7.5k or 10k?
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I can see a 240D easy doing 10k miles on an oil change as easily as a my Jetta TDI does. The engine oil is stressed much more in the TDI then it would be in a 240d engine with no turbo. A turbo 300D in good shape be no different from our TDI. At several of the TDI GTG here at my place there have been several TDI's with engines in 250k to 275k mile range and only given oil changes at 10k mile averages. There are quite a few on the TDI club forum doing the 15k to 20k miles between oil changes, but they are using oil testing to back their extended oil changes. One important thing to mention here is these people are doing 80%+ highway miles. My 240D will mostly be driven around town (80%+) so I will likely do 5k to 7k mile changes or once a year.
I sold a gasser Jeep Cherokee to a friend and neighbor that has had Mobile 1 from 700 mile mark. It had 177,000 miles on the car, with oil changes every 5k to 7k miles when sold. The car now has over 200k miles on the engine and still does not use any oil. He is doing 10k mile oil changes on the car now do to it being driven on 180 mile round trip evey weekend home.