APU or Generator

[Jorg81]

(07-20-2018 )dhirocz Wrote:  I only use the app when it hot out and I'm being unloaded and cannot run the engine. Other than that, it's my emergency A/C, alternator and water pump so it hasn't seen many hours since I've owned the truck.

My APU burns more than twice the fuel of the main engine.

Really? My engine burns about 9/10 a gallon per hour when I idle up, .7 when normal idle, but I though APU’s used a lot less. I always heard about a cup per hour. Maybe I heard wrong. My main concern is hurting my engine from idling cause I’m OTR over s month at at time and I can’t stand heat and I have a dog so I idle a lot in the summer. I just don’t want to shorten the life of my engine. Otherwise I would just idle in the summer and not worry about it. Because the rest of the year I basically you don’t have to Idle much at all. I love cold so I don’t really vital in the winter much really cold