No need for oil change anymore?

There is no one size fits all solution. It is as much a matter of living in your comfort zone as it is oil testing and whatever to determine the oil change interval. I have no beef if someone wants to change their oil/filters at 500 miles or 50,000. But the fact here is that feelings don't make for solid science. I took my last engine to 1.4 million without it ever having to be opened up except for overheads, and the normal oil change interval for its entire life was 30,000 miles. No bypass filter. That would cause many to squirm. But along with that, I am uncomfortable with 100,000 mile oil changes, yet it can be proved it is a viable option in many cases. I buy my oil in bulk from a local supplier for almost 40% less than the cost of oil off the shelf or at the quick lube places, and do my own services. My costs do not make me feel the need to extend my drains to massively long intervals. I send in a sample with each oil change and track the results.

Start with the manufacturers recommendation and track oil samples. That is the best way to find a good interval that works in your truck. No two engines are the same.

 

That's crazy! I wouldn't like to be buying those trucks afterwards

 

That might be true for conventional mineral oil, but synthetic oil does not wear out. It will lose the additive package over time and that is why you analysis it on mid-services so much.

Synthetic oil is worth it for just the MPGs gained from it alone not including the longer changing intervals.

 

Cowpie, do you use schaeffers ? I wish I could find a deal like that in my area.

 

So, you are implying now, that my fingers are registering a couple of tenths worth difference in lubricity ? Dang, maybe I should be brain surgeon instead. I would pick brainwaves by freaking touching people's foreheads

Cowpie, what people like you can't get is term load on engine. Thats why we have so many stupid discussions. It's not that engines are so different as you claim. It's the working conditions. If you think that 1.4 million miles is a lot of miles for a truck that haven't seen 60mph hauling 6,000 lbs one way and deadheaded empty all its sweet life in flat Midwest - you know nothing about real trucks and let's say produce hauling operations including high speed, high mountains, high weights and high temperatures. Now, I know a guy who put 2.3 million miles on a truck doing exactly that and one overhaul so far (half way). He is still in the business with this truck

Do you still think you did that great? Do you see the difference now?

 

What's so great about that kind of service out of an engine? you would expect more than 1.15 million miles before you have to overhaul it! Unless it's a pacaar engine. I'd be very upset if I had to overhaul an engine at that mileage.