I have been using 1oz of Wally World 2 stroke oil per gallon of fuel for about a year now and my engine has been much quieter and my milage with no load has been about 18 to 19 mpg ! I am running a early Hypertech chip. Also 2 stroke oil is meant to be burned and is low ash!

Smokie

 

I have a 99 F 350 extended cab, long bed, SRW drive, with highway gears in the rear end, not sure of the exact ratio. I get 17 mpg average empty running down the highway, and 12 to 13 MPG pulling a 4000 lb trailer, I have run all the additives, and run without, not a whole lot of difference, I travel the US so all kinds of driving conditions, hills, moutains, flat land, tail wind, head wind, etc, you get the idea, so I know these averages are very acurate, and this is milage at the pump, dividing gallons bye miles traveled. NOT WHAT THE COMPUTER SAYS IT LIES.........

I have also punched out the exhaust, so running with no restrictions, and also have a cool air intake, and have chipped the motor..... power is better, but not much change in the milage.

Hope this helps
woody

 

i get 14-14.5 and i dont even have a lift, im just runnin 285's... what gives??

 

What kind of chip are you running?

 

I gained a little bit with the AIS airbox, zoodad and 4" s/s performance exhaust. I had been getting about 11mpg towing and now am getting 12.5. My highway mileage also went up from 18 to 20mpg freeway with the cruise set.

 

a superchip but heck my gf's dad is runnin one in his 01' f350 4x4 and he is gettin anywhere from 20-23 on the highway with no load

 

I am running an edge with attitude chip,,, not real impressed with the results,,,,

 

A lot of guys have had great results with custom tunes from DP-Tuner (Jody Tipton), Tony Wildman and Power Hungry Performance.

 

and he's lying to you, or he's reading the lie o meter (which is no longer accurate after adding a tuner)

 

I'm getting around 17 - 18 in my cc sb sd f-350 mixed use. Hand calculated. The only mod is a superchips tuner in tow safe mode.

 

I just ran from KY to Northern MI (totally flat, no wind) unloaded and I got 20 mpg on waste vegetable oil! 900 miles on 1/2 gallon of diesel. So I guess you could say I got 1800 mpg!
I stayed right on 70 mph and I kept the RPM's under 2000.

 

haha i believe he is lying a tad to but he swears it and his son is saying 17-18 hwy in his 03' 7.3 4x4 f350...idk either way mines better haha

 

I just got 17.8 mpg on a hwy trip with no load. Towing my 5th wheel (12,000lbs) I get around 11.2.

City driving is usually around 15.

 

Man I don't wanna hear anyone complaining- I get about 13.5 mpg highway if I'm lucky, and that's empty.....

 

I did notice the other day that when i ran a tank of off-road fuel in my truck the mpg's went up about 2mpg. This new ulsd fuel is terrible.