Maintenance Schedule Calculator
Enter your mileage and we'll list what is due now, what is coming up, and roughly when each item comes round again.
Your vehicle
- Generic intervals. Your manufacturer's schedule always takes priority over these figures.
- Items are calculated from where the odometer sits within each interval, which assumes previous services happened on time.
- Time based items matter on low mileage vehicles. Brake fluid and coolant degrade in the driveway.
Mileage and time both count
Most service items have two intervals, and whichever arrives first wins. A car doing 4,000 miles a year will never reach the mileage figure for brake fluid, but the fluid still absorbs moisture on the calendar and still needs changing every two years.
This is where low mileage vehicles get neglected. The odometer says nothing is due, and meanwhile the coolant is eight years old and the tires have hardened.
Severe service is the normal case
Manufacturers define severe service to include short trips, stop and go traffic, towing, dusty roads, extended idling and temperature extremes. Read that list honestly and most people driving in a city qualify.
Severe service intervals are typically 50 to 80% of the normal figures. Ticking that box here applies those shortened intervals.
Group the work
When several items come round near each other, doing them together saves real money, because much of the cost of a service is getting the vehicle on a lift and getting to the part. Differential and transmission fluid, for instance, are far cheaper done in the same visit than six months apart.
Frequently asked questions
How often should transmission fluid be changed?
Around 60,000 miles for most automatics in normal service, and closer to 30,000 to 40,000 if you tow. Some manufacturers describe the fluid as lifetime filled, which in practice means the life of the warranty rather than the life of the transmission.
Does a timing belt really need replacing on schedule?
Yes, and this is the one item never to defer. On an interference engine a snapped belt means valves hit pistons, which turns a scheduled job into a rebuild. Typical intervals are 90,000 to 105,000 miles or seven years. Timing chains are different and normally last the life of the engine.
What is severe service?
Short trips under about ten minutes, stop and go traffic, towing or hauling, dusty or unpaved roads, extended idling, and sustained extreme heat or cold. Manufacturers define it broadly, and most urban driving meets at least one condition.
Do I need to service a car that barely gets driven?
Yes, on time rather than mileage. Oil oxidises, brake fluid absorbs moisture, coolant additives deplete, tires harden and crack, and fuel goes stale. A garage queen needs a different schedule, not no schedule.
Everything on this page is an estimate worked out from the numbers you entered and typical figures for the conditions you picked. Your vehicle, your parts and your conditions will differ. Check anything you intend to act on against the manufacturer's specification, the service manual, or a qualified technician. Verifying the result before relying on it is up to you.