I am a low mileage RV'er.
Roof inspection and actions as needed
Oil change, lube, and filter
Air filter inspection and change if needed
These done yearly on my birthday month.
Transmission fluid and other non-yearly items every 30k miles per Ford service schedule.
Simple and works for me. YMMV.
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.