Interesting Oil Change View

gdrill said
The real reason I don't worry so much about the number that has been around since the 50's is because in the industry I work in we change oil in $300,000 engines anywhere between 250 and 500 hours. These engines do run at a steady RPM for the most part but not always. The ones that see varied load and run times get changed closer to 250 hours. You do the math 250 hours X 60 miles/hr (kilometers) and see how far these are traveling. This has been going on for 25 years that I can vouch for. I can say I have never heard of one failing due to our oil change schedule.

Do these engines run in rain, snow, dust storms. Do they run constantly, or do you start them ten times a day in sub-zero temps. There are literally thousands of parameters. I just prefer to err on the safe side. when you live in the middle of nowhere and have small kids or whatever the last thing you need is an engine failure. I just did a compression test on a 3.3 Town and Country I have. 345000 miles, and all cylinders are at about 175. I expect at least another 100000 out of it, unless the rest of it falls apart first.