Comparison of 87 performance vs 87 econ

[17withRAPTOR]

Man yall get bad mpg i made 474 mile one way trip one one tank of gas and got 16.8 with my 6.2 screw.

 

[dataustin]

What were you towing it with?

 

[Squatting Dog]

Down hill with a tail wind.

-Greg

 

[17withRAPTOR]

Haha it was downhill i think i was traveling from west texas to east texas although same route back i got 15.4 mpg

---------- Post added at 09:56 PM ---------- Previous post was at 09:53 PM ----------

Making drive next week will post a pic of the trip gauge.

 

[Wilson]

I finally got the tune on the truck only thing I noticed is I will have to buy tires sooner.

 

[Squatting Dog]

After driving to work the past 2 days 27 miles each way.

111 miles
8 gallons of fuel used
13.8 mpg

View attachment 10236

Compared to 11.5-12 mpg if I was lucky! I know I am not going to win an award from any enviromental group. I sure an the hell did not buy this truck for its fuel economy!

I just wanted to get some actually figures of the difference between the two tunes. So now when someone asks, I have the facts, figures, and personal experience to answer the questions.
-Greg

 

[Wilson]

I'm getting 14mpg driving like a granny with the diablo and e 30 but I still get 12 driving like I want with a few slower paced miles so I'll be getting 12 ish.

 

[Squatting Dog]

Another follow up... After a week of commuting back and forth to work.. 13.4 mpg city driving and not driving like a granny..

View attachment 10434

And yes, the gas gauge still shows 3/4 tank, even though the gallons used indicates more like 40% used with 60% remaining. Distance to empty is showing 325 miles..

So I am sure you are wondering why I am so excited about this "little" gain.. Basically it means instead of filling up every other week, now fill ups are about every 3 weeks or almost an additional 140 miles.



-Greg

 

[Wheela]

I finally found a gas station that has non ethanol 91, put it in and wit 91 perf tune Ive gone from like 12.7avg to 13.7 without changing my driving, and on highway with it I actually peaked at 16.5 I was very happy. still waiting on mike to get to back to me on a PM i sent him about a 91 econ tune

btw woot greg, every little bit counts with these beasts, fuel econ really doesnt bother me a ton now cause Ive moved to grandview and Im 7miles from work, 1mile from new plant next year but a few months ago when my commute was 18 miles each way ya that was a concern of mine, wanting to check out the econ for 91 for my trip to florida in a few months, 1-2mpg more mades big diff in 2800 miles lol

 

[Squatting Dog]

Exactly, when you can get an extra 100+ miles between fill ups that is a win in my book..

Plus, since my grand plan went up in smoke.. I have to save pennies to do my mods now..

-Greg