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Old 08-29-2016, 03:48 PM   #11
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These are all great points. I will up the octane on the next full up and hope for some improvement. If not, oh well. We are loving the Expedition and the fact that the kids have more room, and the dogs are inside the vehecle rather than in the truck shell. As far as towing performance, the newer Expedition is kicking the 2007 Silverado's butt in comfort. We can hardly tell it's behind us. I know it will be dogging it a bit in the mountains, but that's okay. Thanks for all the input. At least I know our MPG is normal.
Using a higher octane fuel will not affect (improve) fuel mileage. Octane is a measure of the gasoline's (and it's blend of additives) to resist pre-ignition /detonation, commonly called "knock". Wider cut fuels such as lower octane and diesel actually have more energy potential per gallon than higher refined fuels. Buying gas without ethanol will also improve mileage for the same reason stated in the last sentence but generally not priced to be economical and hard to find.
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Old 08-30-2016, 08:54 AM   #12
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I tow with an Expedition, and also like it for it's roominess and comfort. I had a 25' Salem (about 4900 lbs dry weight) and got a solid 9 MPG on numerous trips, both summer and winter, including Ohio to Fla last winter.
This year I traded up to a 29', but it was only about 400 lbs heavier. Imagine my surprise when my mileage went up to a solid 10 mpg on several trips of several hundred miles. Trailer configuration is the same - I wouldn't have though that a different trailer (2006 model to 2015) would result in better mileage, but that was my pleasant experience.
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Old 08-30-2016, 09:44 AM   #13
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Expo gas mileage

I have an 06 towing a 23ss. Sounds to me like your just about right on the money. We just got back from Mackinaw and just like always, we get between 8 and 10, depending on wind. Love the way it pulls but everyone I have ever talked to is getting right about the same mileage. Camp on!
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Old 08-30-2016, 03:06 PM   #14
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I drive a 2016 explorer pulling a palomini light recently got over 12 miles per gallon traveling from MI. thru the bad lands, mount Rushmore and Yellowstone park onto Oregon and back. speed around 62 to 65 mpg
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Old 08-30-2016, 03:17 PM   #15
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These are all great points. I will up the octane on the next full up and hope for some improvement. If not, oh well. We are loving the Expedition and the fact that the kids have more room, and the dogs are inside the vehecle rather than in the truck shell. As far as towing performance, the newer Expedition is kicking the 2007 Silverado's butt in comfort. We can hardly tell it's behind us. I know it will be dogging it a bit in the mountains, but that's okay. Thanks for all the input. At least I know our MPG is normal.
The trade off isn't even worth it. As long as you're using the manufacturers recommended fuel, just fill it up and drive. Here is an example with round numbers.

If 87 Octane is $2.00/Gal and you are going on a 100 mile trip at 9MPG...you will use 11.1 Gallons of fuel or $22.22

If you use 89 octane that is $.30 more per gallon (That's what it is around here), you would need to 10.35MPG to just break even....a 1.35 MPG increase or almost 14%. That's not going to happen.

The only thing that MIGHT, and I stress MIGHT give you better mileage would be if you are in an area that has ethanol free 87 octane gas. You might pay around 10 cents more per gallon than with 10% ethanol for it, but you MIGHT see enough of a MPG increase to justify it. Those 87 Octane ethanol free stations are HARD to find.
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Old 08-31-2016, 09:33 AM   #16
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Yes, I would say that's in line with my findings. I think my gad mileage did go down a bit. Good information!
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Old 09-02-2016, 05:56 PM   #17
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Years ago I listened in on a discussion between a coworker that always had a camper and another that vacationed in apartments, beach house rentals etc. The camping guy told the other flat out that if gas prices and mpg were a major concern that he would have never bought the first camper to begin with. The camping experience is well worth the price paid to haul your home away from home wherever you want to go.
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Old 09-03-2016, 12:09 PM   #18
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I have a 2012 Toyota Tacoma V6 4.0 l and I am towing a 2017 Roo 19. I am averaging 13-14 mpg.
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Old 09-04-2016, 09:17 AM   #19
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I have a 2012 Toyota Tacoma V6 4.0 l and I am towing a 2017 Roo 19. I am averaging 13-14 mpg.
Wow! What do you think your average speed is? I'm coming to the conclusion that speed is the biggest factor.
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Old 09-04-2016, 10:46 AM   #20
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I have a 2012 Toyota Tacoma V6 4.0 l and I am towing a 2017 Roo 19. I am averaging 13-14 mpg.
WOW. I pulled my Roo 19 with a Traverse (3.6L) and got 9 mpg. I pulled it with a 2009 Silverado (5.3L, 3.73) and got 9 mpg. And that's in the flat midwest.

I'm having a hard time believing 13-14.
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