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Hypertech Max E-con

1.7K views 6 replies 4 participants last post by  Crashnburn  
#1 ·
Hey guys has anyone tried this programer? It claims to improve fuel mileage from 2-6 mpg which is probably for the diesel models:icon_cry:
 
#6 ·
Is your engine running good? No exhaust leaks, vacuum leaks, clean fuel filter & air filter, O2 sensors and MAF could be checked too.

I have a 99 F150 5.4 with big tires(stock gears) and a lift with an exhaust leak at the moment(popped a manifold bolt) and I still get 14-12MPG's mixed driving with a heavy foot, if I take her real easy I can bring it up over 15 sometimes. I also have an Edge tuner running level 3 with premium
 
#7 ·
My truck is bone stock except for 265/75 tires and a replacement k & n air filter. It is driven like a grandma would on highway and town roads. New plugs Ford plugs 20,000km ago, new fuel and air filter 5,000km ago. No check engine light, no driveabilty problems at all? But I have a bud at the local Ford dealer so maybe I can get him to scan it anyways.