Reviewed By Richard G (Lakewood, CO) Reviewed for a 1994 Ford F-350 —8/24/2014 3:25 PM
This unit didn't make any improvement in mpg as I had hoped. My 1994 RV with the Ford 6.8l engine got about 9.5 mpg when loaded to go camping. I put the module in the computer and didn't notice any better mileage after driving it 250 miles. I want my money back.
In search of a bit more snap...
Reviewed By Bruce W (PALMER, IA) Reviewed for a 1997 Ford F-350 —7/30/2009 3:58 PM
My 1997 F350 4X4 had plenty of power but the throttle response was sluggish. The JPM took care of that quite nicely, plus I picked up a solid 1.5 mpg. I now use 92 octane to eliminate a slight ping on 87/89. The module tripped the "check engine" light, but checks on a scanner showed the alert to be erroneous with all systems functioning properly. I recommend this upgrade.