Old fashioned log book here. I print a form for each vehicle and the lawn mower.
I Record the mileage and date of events: oil changes, tune ups, tire rotations, fixes and maintenance of any kind. Time slips away and after a year or so it is extremely helpful to have a record to fall back on. I also use a face sheet for each vehicle -a quick reference. Oil filter # and brand, oil weight and capacity, air filter #, tire pressures recommended, etc. It all saves time and helps this old geezer stay organized and not so forgetful.
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