I am ordering Diablo Custom tune with Cold Air??

[bigchelis]

I recently acquired my 2005 PW and took it off-road park already and it did great and better than I could have hoped for.

Downside is that over the last 1000 miles I keep seeing just 12~12.5MPG on the overhead module.

My thinking is simple. Perhaps increasing my MPG to 13~15 MPG. Can it be possible with a simple Diablo custom tuner along with K&N filter and picking up a muffler to weld in place of stock one too.

Wishful thinking on my end?

I know at least it would sound cooler

[Colibri]

I would recommend not getting a k&n filter, a dry element filter will perform just as well and protect your engine better. AFE makes a really good filter that is serviceable and will last. Between an intake catback and tune I'm thinking you can pick up 1-2 mpg or a little better no problem. When I first got my truck it had an intake muffler stock tune and tires and I could do 15 highway and 12 city. You just have to not hoon around lol

[bigchelis]

I would recommend not getting a k&n filter, a dry element filter will perform just as well and protect your engine better. AFE makes a really good filter that is serviceable and will last. Between an intake catback and tune I'm thinking you can pick up 1-2 mpg or a little better no problem. When I first got my truck it had an intake muffler stock tune and tires and I could do 15 highway and 12 city. You just have to not hoon around lol

Well, I can keep it 65 MPH on Freeway and go very easy on the streets and yet my MPG's hoover at the same low 12's MPG.

I definitely will do the tune and the weld in place flowmaster.

Thanks,
bigC

[Mule]

Best i've ever seen is a little over 14.... unloaded, down the mountain, with a tailwind.

13's are common with a light load, 65 in the mountains.
12's average (sled+gear, highway).
8-10 with my trailer (steel 2-place enclosed, +sled/gear).

K&N intake, exhaust's getting reworked very soon (terribad flowmaster dual on there, going to a single 3" magnaflow and doing it right). No programmer (yet).

[MSCH2112]

12-12.5 average sounds about right. i had an 05' pw with headers, catback, and cold air. not worth the money for the minimal gain in mpg, especially if you acquire a lead foot taste. had a super chips tuner on it too and it wasn't worth it either.

mike

[Ducky's Dad]

I would be thrilled with 12mpg. My '05 QC Auto has given me 9.7 (uncorrected) and about 10.0 (corrected for three different tire sizes) over its 10-year life. I have an Injen CAI, Banks Monster catback with new Y-pipe, and recently added the Edge Evo 87 Econo tune. I am now at 9.2 (uncorrected) since adding the econo tune. The only time I ever got 12mpg on this truck was the weekend I bought it and drove 400 miles home at low speeds to break it in. Count your blessings, because you won't be counting your money.

[Colibri]

Sweet lord that's abysmal mileage! Wow i didn't realize how good I have it

[vanished]

I get 12 mpg towing 13k lbs!

[Boomerttl]

I thought bad gas mileage came standard on power wagons lol, anyway I had an Airaid intake tube on my old 05 pw and I got 12 to 12.5 from 11 to 11.5 with the factory setup, don't really know much about the programmers or how much they will help, I always heard to stay away from them. Just remember you got 456 gears in it not really geared for good gas mileage, geared for kicking a$$ lol

[FirerescuePW]

I get 12 mpg towing 13k lbs!

Enough outta you, mister...

[vanished]

I get 12 mpg towing 13k lbs!

Enough outta you, mister...

[Snowsled]

Run, do not walk away from using a K&N. That is the single worst thing you can do to your truck unless you like passing 20X the dirt a paper filter does...

Mileage... buy a newer one, mine gets 15-17.

[Will]

I was somewhere around 11mpg average bone stock, now with stock intake, stock exhaust, Diablo and 37"s I hover right at 14mpg daily driving. The bigger tires helped the "highway" gear, easily get 15-16 traveling. The low gears and small tires is the most hurtful on the miles per gallon.

[bstefanic]

Man, how are you guys getting this kind of mileage? This is my around town average....interstate is about 8.5

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[Mule]

got a couple thousand lbs on the hook? :dunno: Does seem like something's wrong if you're not getting at least double-digits with unloaded/around-town driving. Everything getting up to temp (Engine/coolant, transmission)?

Buddy and I, my trailer, two sleds, fuel/gear, tools/parts for a week of riding...


...see those flags? 30-40m/h headwind for most of the trek across Wyoming...

[vanished]

My old '06 would never hit double digits...


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[Will]

I know mine does not have the MDS so thats not it. The Yokos I'm running are fairly light and definitely more aerodynamic than a knobby, plus I have a top that's probably good for close to 1mpg on the hwy. I'll be pulling a tractor around with me this weekend and I'm sure it'll drop to 8 or 9 but we'll see.

[bigchelis]

I cant thank you all enough for your input.

I honestly thought I could improve the MPG some...lol

Well, since I have now 35's that measure up to 34in true height on truck I will check GPS while driving and would only get the tuner if the speedo is off.

Thanks again,
bigC



trying to stretch to make sure no rubbing.

[Will]

It's a good chance it's spot on now, mine speedo was a little over with stock tires and almost dead on the money with 35's. a 34" would have put it right on.