Oil change intervals come from two places: your owner’s manual and, sometimes, the oil product’s label. This tool does not recommend an interval. It only does the math with the numbers you enter.
Use the miles, hours and months from your owner’s manual or the oil label. Do not invent an interval.
Next due (miles)
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Next due (date)
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Enter the last change and the interval from your owner’s manual or oil label.
How to use it
- Choose miles or hours. Cars and trucks usually use miles. Tractors, generators and many pieces of equipment use hours.
- Enter the last change. Put in the date and the odometer or hour-meter reading from when the oil was last changed.
- Enter the interval from your sources. Your owner’s manual lists service intervals, often with different numbers for normal and severe service. Some oil labels also list a recommended drain interval. Use those numbers, not a guess.
- Read the result. The tracker adds the interval to your last reading. If you also entered months, it adds that to the last change date. Many manuals say to change the oil at whichever limit comes first.
Tips that keep the math useful
- Write the date and reading on a sticker under the hood or in a notebook every time you change the oil.
- If you just bought the vehicle or equipment and don’t know the last change, start fresh: change it now, record the reading, and track from there.
- Severe service (short trips, dusty work, towing, idling) often uses a shorter interval in the manual. Use the schedule that matches how you run it.
For what the viscosity numbers on the bottle mean, see motor oil viscosity explained. To see which AMSOIL products are listed for your vehicle or equipment, use AMSOIL’s official lookup guide.
Frequently asked questions
Does this tool recommend how often I should change my oil?
No. You enter the interval from your owner’s manual or oil label. The tracker only calculates the next due reading and date from those numbers.
What if my manual lists both miles and months?
Enter both. Many manuals say to change the oil at whichever limit comes first. The tracker shows both the next reading and the next date so you can compare them.
Can I track a tractor or generator that uses hours?
Yes. Switch the tracker to Hours, enter the hour-meter reading from the last change, and use the hour interval from your manual.
What if I don’t know when the last change was?
Change the oil now, write down today’s date and the current miles or hours, and start tracking from that change.
Find the right oil, then track the interval
Viscosity and specification depend on the engine. Check your owner’s manual, then use AMSOIL’s official lookup guide to see which AMSOIL products are listed for your vehicle or equipment. For passenger cars and light trucks, start with the vehicle lookup.
If you change oil more than once or twice a year, look at Preferred Customer pricing. For the ways to order through B & M Lubricants, see how to buy.