***REPLY***Just bought in Nov-2012 a used 1999 F450 7.3-liter auto transmission Lariat crew cab to pull CGWR of 29,000 lbs. Fuel Mileage thus far = close to 12 mpg running light. Just installed K&N air filter that boosted hp and added 1 additional mpg fuel efficiency = now 13 mpg. Next will install Cortex 1950 superchip and hope to gain additional fuel efficiency. Also use Amsoil products exclusively and hope to see engine efficiency (runs cooler) improve as a result of Amsoil products.
Originally Posted by
HAMMERDOWN103
For those of you that have an F450, what dconsumption. you get for fuel mileage? My dad has a 2010 F350 CC LB and gets around 11.5-12. I'm looking at a 450 to tow my 15k trailer. Don't want a pig but need a big truck to pull that trailer ....