Recently I bought a new aem dryflow drop in air filter. I have already done the gotts mod in the past. I replaced a napa gold filter that had been in my truck before. I used to get 13-14 mpg when driving like a grandma. Which is never going above 2k rpms and driving an average of 55- 60. Now after the aem I am getting 16.5-18 mpg! And to top it that is going 65-70! I always lightly blew out any dust (even though there barely ever was any) out of my old filter. I'm just curious how my mpgs could have climbed this much by such a simple mod. All my figures have been by hand. Same gas station that I've used for the last two years as well.

 

And just to add. Even my edge AND lariat cluster mpg are showing a steady 16-18 25% city 75% highway.

 

thats awesome, but hard to believe. i was always under the impression that air intake mods didnt really do much unless a tune was written to take advantage of them. But what do i know.
if it works, it works

 

Not likely.

 

What else would cause my edge and computer to instantly show this much change?

 

Just for the hell of it, put the Napa filter back in and see if the mileage goes back down.......

 

You're in OK and its late March. Did they change the gas mix back to summer blend? Have temps warmed up so the truck's warmer faster? THese will make a huge difference in mpg. What we all talk about between summer and winter mpg?

 

In 35 years of driving and working on vehicles I never saw any significant difference in air filter types with one exception. An EXTREMELY dirty air filter will cause a 1-2 mpg decrease and some performance loss. Hype sells. A lot.
And by the way, my Gryphon (Edge) shows my truck getting 2-5 mpg better than is actually happening all the time. Even with all tire, GR, etc, settings correct. I think that may be built-in software hype from the Edge guys. You know, "Wow! This thing I bought is awsome!" In this case the pen and paper are more accurate.
Gas blend may be a more likely cause of mpg improvement. Even same station tests will leave you scratching your head-since we have no way of knowing the true percentage of ethanol in the gas we buy day to day.

 

Well I may try putting the old one back in. The thing that got me thinking about recalculating by hand was the fact of how all my digital stuff showed better mpgs. And sure enough they had!

 

winter gas vs summer gas?

 

The edge showed a difference on the same tank of gas.