Quote:

Mike wants everything changed 1 time a year regardless of miles. The average this year is 200 miles, last year was 350ish. had more fire and rescue calls, and a few parades.

I am going to save all the oil out of the 3 big trucks. and send in a sample to be analized.

Kasey

Once a year is not a bad call. But if you test it and the acid, particulate dust, soot, etc are fine then consider it.

200 hrs at 8 hrs/day continuous (25 days) is a lot easier on a motor oil than 200 hrs for 10 minutes here, 30 minutes there over 1 year.