201533 - Call 02

Marvin
Nolte
Bar Nunn
Wyoming
Marvin’s owner’s manual recommends doing maintenance either by mileage or by months. He usually goes by miles--is this okay? Tom and Ray say it depends on how much you drive. If you drive a “normal” amount, mileage is probably fine, but if you only go a couple thousand miles per year, should go by time.