Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post - 2010 F-350 Diesel Poor Mileage

**Carl n Susan** · 03-17-2011, 08:48 AM

Our 2008 6.4L F250 towing a fully loaded 2955 get a consistent 9-10 MPG hand calculated. The lie-o-meter is .5 to 1 MPG higher. I have never averaged 5 MPG despite towing over some pretty significant hills. I recently drove 300 miles from Bakersfield to Sacramento on I-5 at 65 MPH into a 35 MPH (with gusts to 50 MPH) head wind! Not optimal conditions for good mileage. The resultant 7 MPG was the worst I have ever recorded and I have tracked every tank of fuel consumed.

5 MPG means your friend has a significant problem.

03-17-2011, 08:48 AM	#21
Carl n Susan Site Team Join Date: Oct 2005 Location: Carmichael - CA Posts: 7,686 M.O.C. #4831	Our 2008 6.4L F250 towing a fully loaded 2955 get a consistent 9-10 MPG hand calculated. The lie-o-meter is .5 to 1 MPG higher. I have never averaged 5 MPG despite towing over some pretty significant hills. I recently drove 300 miles from Bakersfield to Sacramento on I-5 at 65 MPH into a 35 MPH (with gusts to 50 MPH) head wind! Not optimal conditions for good mileage. The resultant 7 MPG was the worst I have ever recorded and I have tracked every tank of fuel consumed. 5 MPG means your friend has a significant problem. __________________ Carl (n Susan) There is more to life than fuel mileage. 2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB