Idle time is engine time
The odometer only counts the hours a vehicle is moving. The oil does not care whether the wheels are turning.
A work truck that idles at a job site to run the heater, the air conditioning, a light bar or power tools is running its engine and using its oil the whole time, while adding nothing to the mileage. A delivery van that idles at every stop does the same. By the time the sticker on the windshield says a change is due, the oil may have done far more work than the miles suggest.
Many trucks and vans record engine hours as well as miles, often somewhere in the dash display. If yours does, compare the two. A vehicle that shows a lot of hours for its mileage is spending much of its life idling, and its oil change interval should reflect that.
Setting the interval for how the vehicle actually works
For a family car that mostly drives, the mileage interval in the owner's manual is the right guide. For a vehicle that idles a great deal, most manuals list a shorter interval for that kind of use, and engine hours are a better measure than miles.
If you run several work vehicles, keep the change dates and the hours together. A pattern appears quickly, and it is usually the vehicle nobody suspected.
While it is here
An oil change is a natural moment for a quick look at the rest: tires, fluids, belts and lights. Anything due goes onto scheduled maintenance, and an engine that sounds or behaves differently is engine repair, both here. The national oil change page covers what the service includes.
Other stores nearby
The Salt Lake City Truck Tire Center and Orem also change oil.
About this store
This is the Salt Lake City Commercial & Consumer store, managed by Brian Morris. The Salt Lake City page explains the city's four listings.
See the national oil change page for all 33 locations.