2015 F150 2.7L MPG

There is no 85 octane gasoline in Ohio. There is E85 fuel, which is not even gasoline. It is 85% ethanol (corn alcohol), and 15% gasoline. Unless your vehicle is equipped for it, E85 will destroy your fuel lines, any gaskets or plastics that come into contact with the crap, and you will get about 20% poorer fuel economy with it.

85 octane is sold in Colorado and other places out west due to the elevation. I get better fuel economy running 85 octane in the mountains than I do in the flatlands with 87 octane.

T&P is right about the octane levels at elevation. All octane levels are 2 points lower in mountain states. 85 octane is regular unleaded, 87 is mid-grade, and 91 is premium.

mich800 wrote:

Fast Mopar wrote:

Perrysburg Dodgeboy wrote:
I should have said E-85 not 85 octane, it is 85% ethanol but is said to have a higher octane rating then even the 91 octane regular fuel.

I wouldn't use it and have told my wife and kids not to use it in their cars. But there are people that buy it, then complain that your car/truck runs poorly and gets poor fuel economy. Look around I bet you do have it, the pump should say E-85 it is 85% ethanol and can or should only be used in vehicles that have a yellow fuel cap denoting it is a "flex fuel vehicle"

Don

Two different things. E-85 is as you described, 85% ethanol and 15% gasoline. Separately, 85 octane unleaded gasoline is very common in some states. I lived in SD for 23 years. It is (or at least it was) the basic "regular unleaded" grade, just like 87 octane is in Texas.

I remember some stations selling "economy" octane fuel in Michigan but I don't think I have noticed any in years around here.

The reason they sell 85 octane in CO is because when you're a mile up you don't need 87 octane. Your motor just does not needed it when you're a mile high or more. The less air you have the less chance for detonation.

Fordlover wrote:
The only thing that I'm not impressed by is the price of new trucks.

No kidding, the prices are pushing ridiculous.

transamz9 wrote:
I'm going to say, not impressed. My 10 year old 7,000# truck will bust those numbers all to pieces driving the same exact route at 65 MPH. I'm pretty sure my '13 will get those numbers under the same conditions. It just wouldn't do it when you add regenerations in but it does weigh in at 8,000# too. I'm impressed with that little motor making the power it does but not the fuel mileage.

I'm impressed. My 12 year old truck is flat out embarrassed by this F-150. I have 80 less hp, 100 less torque, my highway mileage is 19 if I nurse it at 60 mph. The only thing that I'm not impressed by is the price of new trucks.

Fast Mopar wrote:

Perrysburg Dodgeboy wrote:
I should have said E-85 not 85 octane, it is 85% ethanol but is said to have a higher octane rating then even the 91 octane regular fuel.

I wouldn't use it and have told my wife and kids not to use it in their cars. But there are people that buy it, then complain that your car/truck runs poorly and gets poor fuel economy. Look around I bet you do have it, the pump should say E-85 it is 85% ethanol and can or should only be used in vehicles that have a yellow fuel cap denoting it is a "flex fuel vehicle"

Don

Two different things. E-85 is as you described, 85% ethanol and 15% gasoline. Separately, 85 octane unleaded gasoline is very common in some states. I lived in SD for 23 years. It is (or at least it was) the basic "regular unleaded" grade, just like 87 octane is in Texas.

I remember some stations selling "economy" octane fuel in Michigan but I don't think I have noticed any in years around here.

Perrysburg Dodgeboy wrote:
I should have said E-85 not 85 octane, it is 85% ethanol but is said to have a higher octane rating then even the 91 octane regular fuel.

I wouldn't use it and have told my wife and kids not to use it in their cars. But there are people that buy it, then complain that your car/truck runs poorly and gets poor fuel economy. Look around I bet you do have it, the pump should say E-85 it is 85% ethanol and can or should only be used in vehicles that have a yellow fuel cap denoting it is a "flex fuel vehicle"

Don

Two different things. E-85 is as you described, 85% ethanol and 15% gasoline. Separately, 85 octane unleaded gasoline is very common in some states. I lived in SD for 23 years. It is (or at least it was) the basic "regular unleaded" grade, just like 87 octane is in Texas.

I should have said E-85 not 85 octane, it is 85% ethanol but is said to have a higher octane rating then even the 91 octane regular fuel.

I wouldn't use it and have told my wife and kids not to use it in their cars. But there are people that buy it, then complain that your car/truck runs poorly and gets poor fuel economy. Look around I bet you do have it, the pump should say E-85 it is 85% ethanol and can or should only be used in vehicles that have a yellow fuel cap denoting it is a "flex fuel vehicle"

Don

MPG seems reliable for a solid highway run. The 2 trucks on Fuelly are averaging about 20mpg it seems. We'll see when the sample size grows, but it's a good start. Certainly a great improvement over the 5.4 I had in my 2010 (I averaged 13-15 mpg in mixed driving with that truck).

Perrysburg Dodgeboy wrote:

FishOnOne wrote:

I understood it the same way. Also when driving slower than the rest of the traffic it allows you to drive more at a consistent speed too. I also noticed CO. sells 85 octane gas. Never heard of that.

You don't have 85 octane fuel where you are from? We have it here in Ohio. Diesel is about 50 cents more than 87 octane fuel here.

No 85 Octane in Texas or anywhere in the south that I'm aware of. Only 87,89,93 octane variety.