I use a software program from these people on my laptop.
IMS, fleet maintenance software for vehicles and equipment
They have several different levels for anything from stationary machinery to aircraft. I have an older version and use it to track maintenance on the cars, trucks RV, shop equipment, and lawn equipment. You can customize it for each vehicle or piece of equipment. I started using it about 12 years ago when I was tracking maintenance for a small fleet of cars and trucks.
They have a free trial version of each program you can download to see if it's something you're interested in.