2004.5 Fuel mileage

[SHyans]

When I bought my truck Aug 2004, diesel was the cheapest fuel at $1. 89/gal and I was getting this "high mpg" full size truck. I was psyched! Now diesel is the most expensive fuel at $2. 75/gal and I'm getting lousy mpg's.

BUMMER! :{

 

[RMalone]

Im getting 17-18mpg empty in mixed driving. I don't tow anything but 2k lb boat short distances so I cant comment on towing. I do think the transmission, timing (from tst) and power service/mmo all help milage a little(1-2mpg combined).

 

[jwduke]

I got 19. 2 last weekend going to KC (empty). I ran 70 mph, but have noticed mpg goes south, if I run over 70 mph.

 

[DBeardslee]

The first thing that you need to remember when you add the chip is if you push your foot down on the pedal it is going to consume more fuel yet, so play for a week or two and then try and get a control on your right foot and you should notice at least a mile to two to the gallon difference