3.5 eco 12.5 city mpg - normal?
12-09-2018, 08:03 PM
#12
Senior Member
12-09-2018, 08:08 PM
#13
Senior Member
Thread Starter
Join Date: Nov 2014
Location: In a van down by the river
Posts: 1,273
Received 347 Likes
on
187 Posts
It has only been down to 34F in the mornings here. I do not know if they use winter blend gas here in AZ.
Is it possible my IWE is stuck in 4x4 even though the light isn't on, how would I check? Although it doesn't feel like it is in 4x4.
Is it possible my IWE is stuck in 4x4 even though the light isn't on, how would I check? Although it doesn't feel like it is in 4x4.
12-09-2018, 08:34 PM
#14
Senior Member
It has nothing to do with that, I was just pointing out that OEM tires are different for 4 or 2 wheel drive.
You should
You should
12-09-2018, 10:16 PM
#15
My 4x4 came with 265/70/17 tires from the factory. Also, it is an Eco with 3.31 gears and I average around 12-14 around town and 17 on the highway. I have literally never seen better than 17 mpg from the truck. I think your in the normal range.
12-10-2018, 06:51 AM
#17
12-10-2018, 07:59 AM
#18
Senior Member
Thread Starter
Join Date: Nov 2014
Location: In a van down by the river
Posts: 1,273
Received 347 Likes
on
187 Posts
If your speedo is off you won't know the exact number of miles driven w/o a gps. If you can get one, it might help you understand current behavior and provide a sanity check of the dash mpg calculation..
Vehicles using less advanced lubricants built to wider tolerances benefited from this practice. These days, it's just a waste of fuel. On cold mornings, I give it enough time for the fluids to circulate and get up to proper pressures and then roll.
Vehicles using less advanced lubricants built to wider tolerances benefited from this practice. These days, it's just a waste of fuel. On cold mornings, I give it enough time for the fluids to circulate and get up to proper pressures and then roll.
12-10-2018, 08:28 AM
#19
Senior Member
The tires you have are the stock size, which you can verify by reading the sticker on your door jamb, which shows the original tire size. I know it's stock, because I have a 2013 XLT.
If in fact your new tires were bigger, then yes, your MPG would be off, because a bigger tire in one revolution covers more ground than a smaller tire does. There are calculators on websites where you put in the original and then the new size and it tells you the error rate.
As to why your MPG is so low, one point you nailed is that you're warming it up for 10 minutes and it's colder. Here's how to validate that. I cannot imagine that the weather in Arizona is cold enough to justify a warmup, but that's your choice.
I would suggest the following:
1) When you get home from work one night, turn off the truck, then turn the key to accessory mode. Reset the trip odometer. Go through the menus and find the amount of gas used and write that down. In the morning, run your usual warmup, drive to work, and then when you get to work write down the specifics - mileage driven, mpg calculation, amount of gas left. That will tell you how much gas you used, how many miles were driven, and what the MPG calc is, which you can check by dividing the miles driven by the gas used.
2) When you get home on the 2nd night, do the same thing. Then, in the morning, DO NOT REMOTE START YOUR TRUCK. Get in, start it, and drive. Ideally temps would be close day to day. Write down the same numbers, and then compare day to day. You'll find out how much gas you're using in your warmup, and you'll also see what it's doing to the truck's MPG calculation... Gas is burned, no miles are driven.
I can tell you that one big impact on your MPG is that short drive. Stop and go traffic will also kill it.
With my 2013 with the 5.0 and 3.55 gearing, in the dead of winter in Michigan I don't think I drop below 14.5.
Your dash shows you that you are in 4x2 mode. You can get an electronic version of your manual at owner.ford.com.
If in fact your new tires were bigger, then yes, your MPG would be off, because a bigger tire in one revolution covers more ground than a smaller tire does. There are calculators on websites where you put in the original and then the new size and it tells you the error rate.
As to why your MPG is so low, one point you nailed is that you're warming it up for 10 minutes and it's colder. Here's how to validate that. I cannot imagine that the weather in Arizona is cold enough to justify a warmup, but that's your choice.
I would suggest the following:
1) When you get home from work one night, turn off the truck, then turn the key to accessory mode. Reset the trip odometer. Go through the menus and find the amount of gas used and write that down. In the morning, run your usual warmup, drive to work, and then when you get to work write down the specifics - mileage driven, mpg calculation, amount of gas left. That will tell you how much gas you used, how many miles were driven, and what the MPG calc is, which you can check by dividing the miles driven by the gas used.
2) When you get home on the 2nd night, do the same thing. Then, in the morning, DO NOT REMOTE START YOUR TRUCK. Get in, start it, and drive. Ideally temps would be close day to day. Write down the same numbers, and then compare day to day. You'll find out how much gas you're using in your warmup, and you'll also see what it's doing to the truck's MPG calculation... Gas is burned, no miles are driven.
I can tell you that one big impact on your MPG is that short drive. Stop and go traffic will also kill it.
With my 2013 with the 5.0 and 3.55 gearing, in the dead of winter in Michigan I don't think I drop below 14.5.
Your dash shows you that you are in 4x2 mode. You can get an electronic version of your manual at owner.ford.com.
The following users liked this post:
IAJack (12-10-2018)
12-10-2018, 01:32 PM
#20
Senior Member