Thought I would post this just for the heck of it. I have an 03 4x2 quad cab Dakota with the 4.7 engine. I have a K&N CAI, Fastman TB and Superchips programmer. I recently towed my motorcycle (Honda VFR800) to Asheville, NC from Mooresville, IN to a motorcycle rally. On the way down, I ran 87 octane fuel with the Superchips set to 87 octane performance. According to the overhead console, I averaged 17.5 mpg for the trip, which was about 9 hours with stops. On the way back, I ran 91 octane or higher and had the Superchips set to towing performance. I got the same exact mpg. The one thing I did notice about the towing performance is the throttle responds a bit better/quicker. I assume that is because of the fuel mapping changes for more torque.

Anyway, thought it was interesting that I got the same mileage with both settings. Guess I should've saved the extra $.20 per gallon. Like I said, this is an unscientific result and just what I noticed.

 

Might be as simple as the headwinds. You might have been going against the winds one way and with them on the return trip.

 

By the way, the interceptor is a great bike!

 

I have an 01 Dakota Club Cab 2wd with the4.7 V8 and 4spd auto, and on short trips I average 17.6

 

I have a 99' Dakota R/T 5.9L an i get 9.2 mpg on a good day... YUCK!

 

I just replaced my cat. and I've been improving. 3 more mpg with the first full tank of gas after the installation. I couldn't even make it to 200 miles on a tank. I'm on gallon 13 of 18 and got about 170 miles so far.

 

i get 99mpg















DOWNHILL

15 avg..

 

haha actually my average on my last freeway trip was 17 mpg....i was goin 61 mph the whole way lol

truckers were passing me but hey, i got what some would consider excellent milage and what some would consider crap

lol its alright tho i normally cant break 2 digits on gas milage lol

 

I get horrible gas mileage with my truck lol, im lucky if I get 10, but no highway miles here in hawaii. About 10 bucks a day to drive to work and back.