MPG Today ...

[cruz]

Took a 150 mile trip from Santa Cruz to San Francisco and back today, went up to the City via San Jose and up the peninsula and returned going down the coast. Average speed up was 65 mph, and down the coast it was 55 mph plus the stop and go traffic in SF.
Not too bad.

[MOPARManiac]

Not to shabby. These PowerWagons can get decent (not great) fuel economy with one simple step. Drive conservative and keep your foot out of the gas. The 4:56 Gears actually make the motor work less. Our Durango with MDS doesn't do much better than my PW. I would be curious as to what the PW would get with MDS?

[TwinStick]

Not too shabby !!! That is a 37% increase over my mileage of 10 mpg.

[cruz]

If I never leave town I get a consistent 9.5 to 10.0 mpg tank after tank.

[Stickman]

I forgot I had this pic, but I managed to average 15.4 in mine on the way back form Park Hills, MO last summer from a riding trip. Mostly 60-65 on the way down and 75 all the way back. Mostly hilly but also some good flat stretches. It was loaded down with a ton of riding gear and my 450R in the bed, still did damn good and I was very surprised. I think I could have gotten a bit more out of it but we got into St. Louis and traffic was terrible. That trip is the mileage on 1 tank, still had 40 miles left on it too. That average isn't bad at all on the 3rd gens with that 5 speed either.

[05PWrockcrawler]

My mileage has never been good. Got 13 once or twice back in the day. Now basically 10 is the best I get on highway. I bet with my new tires and lift I won't get any better than 8 MPG out of it.


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[ddenney]

I got about 14.5mpg bringing mine home from georgia last week. Around town i've been averaging 11.5-12mpg. And thats with 35's. pretty happy so far. Kind of curious what a programmer will increase it any.

[leo72987]

I was averaging about 13 the other day driving for about 30 miles on I90 here in Massachusetts granted I was rolling at 70 probably could have gotten better if I slow down a little bit.

[R0NAN]

I've been researching ethanol based fuels and for the last month, i have used a 10% ethanol blend and compared the results with straight gasoline with no ethanol. Wow... What a difference. I've learned that ethanol, although it generally can improve octane ratings, it has less energy value than regular gasoline. I have noticed a12-14% increase in fuel economy with straight gasoline vs a 10% gasoline /ethanol blend.
The only non ethanol blend where I live is the premium fuels such as she'll " V Power" amongst a few others. The premium gas is about 12% more expensive so in the end, I end up spending about the same. Ethanol based fuels destabilize very quickly and attract water which is very bad for engines. For that reason, I will only use non ethanol based fuel from this point on.
Different states have different ethanol rules so seek out real gas and try it out. Food is for eating not fuel. Freakin government interference. Any benefits to the environment from burning ethanol is lost due the fuels burned growing and harvesting the corn, not to mention corn is one of the worst crops for soil quality depletion.
Just my opinion!

[coder]

The overhead is an average, if you reset the meter while driving on the freeway so you get actual highway-only milage, you will see something like 14-15 mpg in a 3G

[SheepdogOutdoorsman]

Ethanol is just one of many aromatics one can add to gasoline to increase octane (reduce volatility). The best aromatic you can add to reduce volatility, while still improving performance, is Xylene. The best fuel to buy if you plan to mix your own fuel is 87 octane as it has the least amount of added aromatics versus 89 octane and above. With lower octane gasoline you get the purest gas possible to add the Xylene to. My first degree was in high performance automotive technology and I used to own and tune some hopped up turbo cars. Nothing ever worked better than mixing my own fuel.


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[shaner82]

Today while cruising at a little over 60 MPH, I was hovering around 16-17 MPG. That was on the flat part of the highway only. It dropped a fair bit on any hills.

[HammerTime]

If I never leave town I get a consistent 9.5 to 10.0 mpg tank after tank.

I average 10.5 or so, with a lot of city or stop-n-go freeway driving.

[TrueBlue13PW]

Just made a trip in mine running with just a full truck tool box in the back. 13.22 hand calculated is what my truck has averaged over it's lifetime so far with just over 13,000 miles on it. The best tank was 14.8. If you have an iPhone you can download an app called fuel monitor and track 1 vehicle for free. Unlimited vehicles is .99 I think. The app is really nice you can track repairs and maintenance along with mileage of the vehicle. Oh and the tank that got 14.8 oddly enough was the tank that I was running 74mph and 80mph most of the time.

[Stickman]

I use Fuel Log on my S4, which sounds the same as that. It usually tells me exactly what the dash says though. I like using it to keep track of my expenses on both my trucks.

[TwinStick]

Until recently, there was only $ 00.10 a gallon increase for each grade of gas around here. It has been that way since i was a teenager, I am now 50. Now, it is $3.78 for reg. $3.98 for mid grade. $4.18 for super !!! - over ???

Can't even buy non-ethanol gas at all, no one has it.

[MOPARManiac]

Went to my parents for easter which is a 6 hour drive. Half the trip is Interstate driving 80 and the other half is two lanes driving usually around 70 with some city/town driving mixed in. I averaged 15 MPG ethanol 10%, which I will take all day. I have talked to people with half tons that aren't getting that good MPG's.

[Will]

I did average 11.3mpg with 35's without ever resetting the dash so that's all kinds of driving patterns. Then I installed the 37's and it dropped to almost 10.5 average. Finally I installed a Diablo Intune and on the 93 performance tune by Hemifever, I'm setting around 12.8. I'll try the "mpg saver" tune when this tank runs out on the 87 octane. I wonder what performance decrease it will make but it'll be the "daily driver tune" if I pick up another mpg or two. But I'll take the increase in tire, performance and to 12.8mpg any day!

[Ducky's Dad]

The best aromatic you can add to reduce volatility, while still improving performance, is Xylene.

In much of So Cal, xylene is not available at retail because of air quality regulations. If I'm willing to do a 220 mile round trip, I can buy xylene for about $19/gallon. All of the gas pumps in my area are labeled for 15% ethanol, and I think that changed from 10% about two years ago. We are screwed.

My PW overall average for eight years is just under 10.3, and probably 60%-70% of that is highway cruising at 70mph+, on 35s with a cab-high shell and no lift. For reference, my 98 GMC with 5.7 and 35s/33s over 15 years has averaged about 12 overall. The 2008 Tundra that I just got has the TRD package which only comes with 4.30 diffs, and previous owner showed 14.1 on the computer, but I'm getting about 12.5 over the first couple of weeks, mostly around town on 33s.

[SheepdogOutdoorsman]

The best aromatic you can add to reduce volatility, while still improving performance, is Xylene.

In much of So Cal, xylene is not available at retail because of air quality regulations. If I'm willing to do a 220 mile round trip, I can buy xylene for about $19/gallon. All of the gas pumps in my area are labeled for 15% ethanol, and I think that changed from 10% about two years ago. We are screwed.

My PW overall average for eight years is just under 10.3, and probably 60%-70% of that is highway cruising at 70mph+, on 35s with a cab-high shell and no lift. For reference, my 98 GMC with 5.7 and 35s/33s over 15 years has averaged about 12 overall. The 2008 Tundra that I just got has the TRD package which only comes with 4.30 diffs, and previous owner showed 14.1 on the computer, but I'm getting about 12.5 over the first couple of weeks, mostly around town on 33s.

A friend and I always ordered a 55 gallon drum of xylene and split it. We both ran high boost turbo setups and just couldn't find readily available fuel to keep them from knocking. We just made our own!

Here in AZ the highest common octane is 91. Growing up in Michigan we were always able to get 93 octane fuel, but maybe that had something to do with all the muscle cars.

College opened my eyes to the technology, physics, and chemistry of it all and in all my research and testing I've never found anything better for street use than gasoline mixed with xylene to reduce volatility.


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[Will]

The best aromatic you can add to reduce volatility, while still improving performance, is Xylene.

In much of So Cal, xylene is not available at retail because of air quality regulations. If I'm willing to do a 220 mile round trip, I can buy xylene for about $19/gallon. All of the gas pumps in my area are labeled for 15% ethanol, and I think that changed from 10% about two years ago. We are screwed.

My PW overall average for eight years is just under 10.3, and probably 60%-70% of that is highway cruising at 70mph+, on 35s with a cab-high shell and no lift. For reference, my 98 GMC with 5.7 and 35s/33s over 15 years has averaged about 12 overall. The 2008 Tundra that I just got has the TRD package which only comes with 4.30 diffs, and previous owner showed 14.1 on the computer, but I'm getting about 12.5 over the first couple of weeks, mostly around town on 33s.

A friend and I always ordered a 55 gallon drum of xylene and split it. We both ran high boost turbo setups and just couldn't find readily available fuel to keep them from knocking. We just made our own!

Here in AZ the highest common octane is 91. Growing up in Michigan we were always able to get 93 octane fuel, but maybe that had something to do with all the muscle cars.

College opened my eyes to the technology, physics, and chemistry of it all and in all my research and testing I've never found anything better for street use than gasoline mixed with xylene to reduce volatility.


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I like to mix AV100LL and can get it for less than $5 a gallon for hopped up V-Twin engines.

[SheepdogOutdoorsman]

Hopefully your V-Twins don't have O2 sensors or Cats. Lead destroys them. AVGas is great for hopped up cars that require leaded fuel, but it will destroy modern engines due to the tetraethyllead. Metal compounds aren't as good as aromatics, but you're right ... They sure are cheaper! Aromatics are best, but they cost a lot more.



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[Will]

Carb motors. ...and about 1:5 ratio, just enough that it doesn't prededonate on 93 octane

[SheepdogOutdoorsman]

One of my instructors had a turbo Screamin' Eagle that he'd ride to campus from time to time. While I'm not too big into motorpickles it was a sight (and sound) to see (and hear) on the dyno!


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