Newmar 2004 Dutch Star with Cummins ISL 400 Engine

I installed the AirDog on my Cummins powered motorhome myself. Easy installation in the same location as the OEM single fuel filter. Return fuel line from the AirDog was tapped into the original return fuel line. Again, it was an easy job. The results are amazing. Throttle response was noticeable on first test drive. I no longer get the hesitation in acceleration and hiccups while increasing the demand on the engine. Also better mileage – pre-AirDog was about 6.6 and after AirDog is 7.0+. The engine now performs like a 400hp engine should perform. My only regret is not doing the change over much earlier.

Don M.
Rockwall, TX