I just bought a Trail Lite B+ 211s with 8.1 Chevy engine. This is my fifth motorhome (others range from an old 20' Vagabond, and three Winnegagos, from 19 to 32'. This vehicle is fantastic. I am...
Whether I have 3 or 5 gallons left makes a difference if we are in a bind, and I know some vehicles (like a Toyota 4runner) have a large reserve after the light comes on.
At 10 mpg, I am very antsy with only 3 gallons remaining, but properly warned with 5. The question of reserve fuel addresses the level of warning being delivered to the driver.