Track oil changes, tire rotations, brake inspections, and other maintenance by mileage intervals.
This tool keeps a running maintenance log for one vehicle, tracking each service item, oil changes, tire rotations, brake inspections, or any custom item you add, by its own mileage interval rather than a calendar date. You enter the odometer reading at the last service and the interval for that item; it adds them to get the mileage where the item is next due, then subtracts your current odometer to show miles remaining. Add an average weekly mileage and it converts that gap into a rough time estimate. What trips people up: the tool has no knowledge of your manufacturer's recommended interval, you supply that number yourself from the owner's manual, and every estimate only stays accurate if you keep the current-odometer entry updated.
A concrete input and expected output from the current implementation.
Input
Oil change: last service at 32,500 miles, interval 5,000 miles, current odometer 35,800 miles, average driving 250 miles/week
Expected output
Next oil change due at 37,500 miles (1,700 miles remaining), about 6.8 weeks away at your current pace
32,500 + 5,000 = 37,500 is the due mileage; 37,500 - 35,800 = 1,700 miles remain, and 1,700 / 250 miles per week = 6.8 weeks at the rate you entered.
Each maintenance item is stored separately with its own last-serviced mileage and its own interval, so an oil change every 5,000 miles and a tire rotation every 7,500 miles run on independent schedules. Updating the current odometer once recalculates the miles-remaining figure for every tracked item at the same time, rather than requiring a separate update per item.
Due points are mileage figures first; a timeframe is only produced if you supply an average driving rate (weekly or monthly miles), which the tool divides into the remaining mileage. Because that rate is a manual input rather than a live feed, the mileage-based due point stays exact while the estimated date is only as good as the average you gave it.
No. You enter the current mileage manually each time you check it. The tool has no connection to your vehicle, so the accuracy of every remaining-mileage and time estimate depends entirely on how recently you updated that number.
No, there's no vehicle lookup. You enter each interval yourself, usually copied from the owner's manual, and the tool simply tracks your mileage against whatever number you give it for that item.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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