“When was my last oil change?” It’s one of those questions that shouldn’t be hard to answer, but usually is. You know it was a few months ago. Maybe. Was it before or after that road trip? You check the windshield sticker but it fell off. You dig through your email for a receipt.

Vehicle maintenance follows a frustrating pattern: important enough to matter, infrequent enough to forget, and just complicated enough that most tracking systems feel like overkill. (Home maintenance has the same problem — air filters, gutters, smoke detectors all sit in the same forgotten-but-important category.)

The sticker-on-the-windshield problem

The oil change sticker tells you when your next service is due — if it hasn’t fallen off, faded, or been covered by a parking permit. It tracks one thing. Your car needs dozens of maintenance tasks, each on different schedules.

Dedicated car maintenance apps exist, but they want your VIN, your mileage at every service, your oil type, your tire pressure — turning a simple “I changed the oil” into a data entry project.

One tap and done

LastDid keeps it simple. Create tasks for the maintenance you care about. Tap when you do the thing. Done.

“Oil Change — 94 days ago.” That’s what you see next time you wonder. No mileage tracking, no VIN numbers, no service records to fill out.

What people track

  • Oil change — Every 3,000-7,500 miles depending on your car
  • Tire rotation — Every 5,000-7,500 miles
  • Air filter — Every 15,000-30,000 miles
  • Brake inspection — Annually or by feel
  • State inspection — Annual in most states
  • Car wash — Because some people care
  • Wiper blades — Before they start streaking
  • Coolant flush — Every 30,000 miles or so
  • Transmission fluid — Every 30,000-60,000 miles

Multiple vehicles

If your household has more than one car, just prefix the task: “Civic — Oil Change” and “Truck — Oil Change.” Each vehicle gets its own history and patterns. (The same prefix trick works for pets in a multi-pet household — “Luna — Flea Meds” and “Max — Flea Meds.”)

At the mechanic

“When was your last oil change?” Instead of the usual shrug, you pull up LastDid: “94 days ago.” Your mechanic can make better recommendations when you have accurate information, and you can make better decisions about what service you actually need versus what’s being upsold.

Notes add context

When you log an oil change, add a note: “Synthetic 5W-30, 47,200 miles, at Jiffy Lube.” Six months later, you’ll know exactly what was done. Try getting that from a windshield sticker.

Patterns over time

After a year of tracking, you’ll see your real maintenance rhythms. “You usually change oil every ~85 days.” That’s not a schedule to keep — it’s a reflection of what you actually do. If you’re the type who stretches it to 120 days sometimes, that’s your business. LastDid observes. It doesn’t lecture.