Track oil changes and DIY services
Log DIY oil changes, filters, and routine upkeep. Keep the mileage, cost, and supplies you used for next time.

Every service. Every mile. All in one place.Underhood is a vehicle maintenance app for tracking DIY oil changes, shop repairs, fuel costs, and service records. Keep every car, truck, and RV in one private household garage.
5.0L V8 · 4WD
Your custom reminder · due in 500 mi
DIY upkeep · 43,750 mi
Shop visit · Receipt attached
A car maintenance tracker for owners who handle routine upkeep and leave bigger repairs to the shop.
Log DIY oil changes, filters, and routine upkeep. Keep the mileage, cost, and supplies you used for next time.
Scan a receipt to draft service details, then review and save. Keep repairs, shop names, invoice numbers, and warranty notes together.
Set time and mileage reminders. Use a custom interval or copy one from your manufacturer’s manual.
Create a service report with original receipts in one ZIP, print to PDF, or export your history as a CSV spreadsheet.
Record gallons, fuel cost, and odometer readings. Track fuel economy between full tanks, including partial fills.
Compare each vehicle with the whole garage. Explore monthly, quarterly, and yearly spending, with budget estimates based on your recorded costs.
Track motorhomes, campers, and trailers. Keep seasonal reminders, shop repairs, propane costs, manuals, and receipts in their own RV logbook.
Track manufacturer and extended warranty details. Keep outstanding shop recommendations separate from completed repairs.
Individual covers 1 user and 2 vehicles. Family covers unlimited vehicles and up to 6 users, including the owner.
Enter year, make, model, and mileage, or use VIN lookup to fill available vehicle details. Review and edit every suggestion.
Log past services or your next oil change. Upload PDFs or receipt photos straight from your phone.
Open the manufacturer’s manual and save the intervals that apply. Link completed services to update your reminders.
Read maintenance-page photos or PDF excerpts to draft intervals for review. Complete manufacturer schedule lookup is not connected yet. Export dated reminders to your calendar; direct email and push alerts are not available.
Both plans include vehicle and RV tracking, service history, fuel, reminders, receipts, warranties, budget analytics, and reports. RVs count toward your vehicle allowance.
$5/month
30 days free when subscriptions launch
$10/month
30 days free when subscriptions launch
Free during early access, plus a 30-day trial at launch. No card required. All features are included within your plan’s vehicle and user limits. Your trial starts on your first app or account visit after subscriptions launch and you accept the current terms. Afterward, choose whether to subscribe. No automatic paid enrollment.
Underhood is a vehicle maintenance and fuel tracking app for car and truck owners. It keeps DIY services, shop repairs, receipts, mileage, fuel purchases, and maintenance reminders in a private household garage.
Yes. Log oil changes and routine DIY maintenance with the date, mileage, supplies, and cost. Record shop visits with repair details, invoices, and receipts. Keep recommended work that was not completed in Shop follow-ups.
Yes. Record fuel purchases, gallons, prices, and odometer readings to track MPG between full tanks. View recorded fuel, oil change, repair, and other running costs over time, including cost per mile when enough mileage data is available. Insurance, registration, and depreciation are not included.
Individual is $5/month for 1 user and 2 vehicles. Family is $10/month for unlimited vehicles and up to 6 users, including the owner. All features are included. Early access is free while payments are paused. Both plans include a 30-day free trial once subscriptions launch. No card is required. Your trial starts on your first app or account visit after launch and acceptance of the current terms. After 30 days, choose whether to subscribe: Individual is $5/month; Family is $10/month. Saved records remain viewable and exportable if you do not subscribe. Complimentary accounts stay free.
Automatic manufacturer schedule lookup is not connected yet. You can use your exact owner’s manual to enter time and mileage intervals, or review intervals drafted from uploaded maintenance pages. VIN lookup can fill available vehicle identification details; it does not provide service intervals.
Yes. Use Underhood in a mobile browser or add it to your home screen. An internet connection is required to load and save records. Export service history as CSV, print reports to PDF, or download a service report with original receipts in a ZIP file.