Jayco23FB wrote:
Hello,
I am considering moving to a deisel engine in my next truck. Primary reason is for increased fuel mileage. I tow a 23' travel trailer that weighs approx 6,000 lbs loaded. I know there are many variables such as make etc. I am just wondering if anyone out there has a simular unit using a 3/4 ton truck, automatic with a deisel engine that could provide a real world estimate of fuel mileage. Thank you.
I switched from a 2009 GMC 2500 6.0L gasser to a 2013 GMC 2500 6.6L diesel. My towing mileage went from 6-10 mpg (10 MPG was with a strong tail wind) to 8-14.5 mpg, when not towing I went from 12-15 to 13.5-19 mpg. These are actual numbers based on nearly 200 tanks of fuel over 5 years.
I didn't make the switch for the improved mileage. I made the switch for the improved towing. Night and day difference.