How to Keep Car Maintenance Records (Free Template)

A maintenance log turns "I think the oil was changed sometime last spring" into a clear history of everything done to your car. It tells you what is due next, helps a mechanic diagnose problems, supports warranty claims, and gives a buyer confidence when you sell. Keeping one takes a minute after each service. This guide covers what to record, gives you a template to copy, and explains the easiest ways to keep it up.

• Knowing what is due. Intervals for oil, filters, brake fluid, coolant, spark plugs and tires are spread across time and mileage. A log is the only reliable way to keep track.
• Warranty claims. Under the Magnuson-Moss Warranty Act, you can have maintenance done anywhere, including at home, without voiding your factory warranty. But if a claim is questioned, you may need to show that required maintenance was done. Receipts are your proof. The FTC explains this in its guide to auto warranties and routine maintenance (opens in a new tab).
• Service contracts. Extended warranties (service contracts) commonly deny claims without maintenance records. See is an extended warranty worth it?.
• Diagnosis. Knowing when parts were last replaced helps a mechanic rule things out and avoid replacing a part that is nearly new.
• Resale value. A documented history is one of the strongest signals to a buyer that a car was cared for. See how service records raise your car's resale value.
• Budgeting. Totals by year show your real cost to own the car; see average car maintenance cost.

Each entry should answer: when, at what mileage, what was done, with what parts, by whom, and for how much.

Extra details worth capturing

• Measurements: tire tread depth at each tire, brake pad thickness, battery test results. They show how quickly things are wearing.
• Warranty information on parts: batteries, tires, brake pads and some repairs come with their own warranties. Note the terms.
• Recall repairs: the recall campaign number and the date it was completed. Search our recalls pages and check your VIN at NHTSA (opens in a new tab).
• Diagnostic codes: if a check engine light came on, note the code (for example, P0420) and what fixed it.
• Tire changes: size, brand, model and the DOT date code.

Copy this into a spreadsheet, a notes app or a printed page you keep in the glovebox.

Vehicle details

Decode your VIN with our VIN decoder to fill in the exact engine and trim. Oil grade and capacity come from your owner's manual.

Service log

Add a "Notes" column if your format has room, or write notes underneath each entry.

Fuel log (optional)

A fuel log lets you track real MPG and spot sudden drops, which can be an early sign of a problem. Our MPG calculator does the math.

A log records the past. A short "next due" list keeps you ahead. Build it from your owner's manual maintenance schedule.

Use the stricter "severe service" schedule if your manual says it applies to your driving: short trips, towing, extreme heat or cold, dusty roads or heavy stop-and-go traffic. Our oil change interval estimator helps with that one, and the 30/60/90k-mile service explains the bigger milestones.

The method you will actually keep up with is the right one. A combination works well: a digital log for history and reminders, with the original paper receipts kept in a folder at home.

A free CarManager garage stores each vehicle's services, costs, fuel-ups and receipt photos, and sends reminders when items come due. When you sell, you can share a history report with buyers.

• Photograph or scan every receipt right after the service, before it fades or gets lost. Thermal paper receipts can become unreadable within months.
• Check that the invoice shows the date, mileage, VIN or plate, and the parts and fluids used. Ask the shop to add anything missing.
• For DIY work, keep the parts and fluid receipts and note the date and mileage on them. A dated photo of the odometer and the oil bottle label is good supporting evidence.
• Keep one folder per car, in date order, at home rather than in the car.
• Keep records for as long as you own the car, and pass them to the next owner.

You do not need a complete history to start.

1. 1Gather what exists: receipts in the glovebox, emails from shops, online accounts at dealers or chains. Many dealers can print the service history they have for your VIN.
2. 2Ask previous owners if you bought privately; some keep records.
3. 3Record today's baseline: mileage, tire tread depth, battery age (date sticker), brake pad thickness at your next service, and fluid condition.
4. 4If key items are unknown, treat them as due. For example, if you cannot tell when the brake fluid or coolant was last replaced, consider having them done now so your schedule starts from a known point.
5. 5Log every service from here on.