Which is the better option?

[Lindenberg]

I store my Alpine on the side of the house and I dump the air when it is parked there. I have two ways to inflate the air bags if I want to raise the coach.

Engine
Pros: Has an air dryer.
Cons: Must let the engine run until the temperature reaches 170 degrees before shutting it off.

Air Compressor
Pros: Don't need to run the motorhome engine.
Cons: The air is not dry.

Which way is best for the long term care of the coach?

[Lindenberg]

I store my Alpine on the side of the house and I dump the air when it is parked there. I have two ways to inflate the air bags if I want to raise the coach.

Engine
Pros: Has an air dryer.
Cons: Must let the engine run until the temperature reaches 170 degrees before shutting it off.

Air Compressor
Pros: Don't need to run the motorhome engine.
Cons: The air is not dry.

Which way is best for the long term care of the coach?

[Mutha]

Tom, You can use your home compressor airline to air your bags by installing a in-line air dryer. These are very inexpensive and may be purchased at any auto body paint supply stores.

Mini Desiccant Dryers

The ones in the link above are what I use with my home air compressor and they work great. When the dark blue desiccant inside the dryer changes color to a bright pink you know it is time to change the filter.

Good luck - Glenn