I probably should wait for the fill-up, but I am down to 1/3 of a tank of fuel and my lie-o-meter says 19.4 mpg. That is w/ mixed driving - some city driving but more short highway trips (20 miles w/ some stop and go) than city driving. I don't know HOW LONG it has been since I have seen that kind of fuel economy. Certainly it was before I installed the mud terrain DuraTracs (which dropped me a solid 1.25 mpg)! The wind has been VERY light here lately - quite rare actually, but good for mpg tests.

I usually see an average of 1 mpg offset between the hand calculated and lie-o-meter values (hand calculated is less naturally). So I guess I am around 18 mpg (hopefully a tad higher). I suspect that if I were totally travelling on a long highway trip, the lie-o-meter would be well over 20 mpg (assuming no wind).

After I fixed my brake caliper (not long ago), my recent fuel economy has been around 16 mpg average. My "long term average" has been 16.25 mpg.

All that being said, I would expect that normal winds would knock off about 1 mpg.

With that adjustment, it looks promising that the PHP Atlas 40 is adding about 1 mpg in fuel economy.

Hope I am not jumping the gun and reporting too early, but I keep ALL my fuel data, plot it, and look for statistical changes ........... and this looks very promising at this point!

 

That is good news.
I have PHP's old regular FICM tune and I got a 1-1.5 jump in MPG's.
Any thing helps with my pig at about 12-13 mpg's with mixed driving
But then again it is a 12,000 lbs DRW with 4.10's.
Not bad for a $150 upgrade.

 

More and more I want this upgrade

Too bad I can't play until October. I'm going to have Ed rebuild my FICM and apply the Atlas 40 at the same time.

 

Mark I have been talking to Ed latly I have one in the works just have to put stuff in the mail.

 

So far, I am certainly happy with mine Moe.

 

Well, the list is growing for my vacation, May 6th.

I'm sending in my FICM to ED.

Also thinking about pulling the turbo and cleaning it. My VGT is hard set at 85% at hot idle.

I need to start looking for all the parts I need for the turbo cleaning and get them ordered.

I'm leaning towards the Atlas 40 for Ed to upgrade. My mileage sucks right now, and hoping between the turbo cleaning and a FICM upgrade I can raise the MPG above 13.8.

Thanks for the info Mark.

 

So what does it cost to send the FICM to Ed to have it flashed?

 

$150 for the tuning