Originally Posted by Boomer914
I dunno when my car starts running rough and getting crappy gas mileage, is loud, that "sounds" like an oil change. Wanna picture of the dirty, thin oil. 3k miles right on time.
you really need to send youre oil out to be analyzed, because it really sounds like you have other issues.Blackstone Labs
i have a jeep with a 4.0 litre with nearly 320,000 miles on it and at 3,000 miles the oil is still clean looking i dont change it till 5,000 miles and even than its not totally black, and never thin and watery looking, unless of course you forgot warm oil out of a hot motor is thinner than room temp oil.
and fyi there are filtration systems used on semi trucks that allow up to 300,000 mile intervals on oil changes,with only filters changed at regular intervals, oil dosent wear out it just gets comtaminated heres a few examples of how long oil can and does last, Trucker Testimonials
so either you have other issues with youre motor or you are just tossing money in the trash