i have a 97 5.4 expedition and im looking to get the best programmer for mpg... the truck is a total daily driver and grocery getter.

thanks guys !

 

Then you're looking in the wrong spot.

You drive a heavy vehicle don't expect good gas mileage. Its going to be a hit or miss on if you're going to get any better gas mileage.

But look into getting a good custom tune able programmer. Look into SCT, diablo, or gryphon programmers. Also looking into reputable tuners to get custom tunes. There are a few great tuners on this site.

I myself have a gryphon CS from PHP. Too bad they don't custom tune CS or CTS anymore. They do still custom tune, what they call a gryphon.

 

You will get more mpg from good maintenance than you will a programmer. Plugs, filters and fluid changes.

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