Having worked as a mechanic for 30 years, I've compiled a list of ten things I do just once a month, ranked from tenth to first place. These are only the truly effective items from the fifteen daily inspection items mandated by the government. No tools are required. The number one item takes only five minutes, and skipping it will cause problems even with a brand new car.

00:00 Mechanic's Self-Introduction
00:09 Engine Burned Out at 120,000 km
00:38 10th Place: Washer Fluid Level
01:18 9th Place: Wiper Wiping
01:54 8th Place: Lights On
02:38 7th Place: Brake Fluid Level
03:19 6th Place: Battery and Monthly 30-Minute Check
04:17 5th Place: Tire Tread and Wear Indicators
04:56 4th Place: Tire Pressure
05:38 3rd Place: Coolant Level
06:19 2nd Place: Starting Performance and Unusual Noises
06:57 1st Place: Engine Oil Level
07:46 Review of the 10 Items
08:06 Monthly, Annual, and Vehicle Inspection
Voice: VOICEVOX: Ryusei Aoyama https://voicevox.hiroshiba.jp/
Photos are real (Wikimedia Commons, CC). The video of the mechanic was generated by AI.