What are you guys with 2010 4X2 expeditions with 3.31 rear ends and 18 inch tires seeing for highway mileage?

Roy

 

I'm not sure that anybody in this area has that configuration. Only guy I remember with a 2010 model was a EL I believe

 

As they didn't change any of the motor/trans I would assume it's the same as the rest of us. 14-16 city, 18-20 hwy.

 

I did not know if the 3.31 rear end was new for 2010 or not. BTW, it gets better than 20 hwy.

Roy

 

I'd think the 3.31 axles would bet better than 20 as I can squeeze 20 out of my 3.73s.

-- Chuck

 

I have gotten close to 22 going to Vegas one time. It is possible.

 

Now what fun is that, you drive a 3+ ton monster, get that baby cruising.

I think I talked about it in the other thread, but my 2010 EL w/3.73s(obviously) manages about 15-16 mpg on mildly hilly Iowa roads at 80 mph.

 

I know. That was doing 70-80mph. I think we had a bit of wind at our tail too. Coming back into the wind at the same speeds I couldn't get more than 20.5 or so.

 

i just posted this in another thread, wish i read this one first.

2010 regular length, 4x2, 3.31 w/ factory 20's the wife gets 16-17 in the city. haven't taken any road trips yet. (that's what the excursion is for....)

 

Where we live & with the type of driving we do, I would bet money we would get better mileage with 3.73s than with the 3.31s. Wife's is a 2010 4x4, 3.31s & 20s and 6th gear is a joke. It shifts in & lugs then you hit an incline & it drops a gear. I'd give anything to have something lower in ours. The part that that's really sad is it has the "heavy towing package".

 

Just got back from a 1800 mile trip and best tank was 21.4 (hand calculated) at 70 mph with cruise. I still have less than 4K on the OD and it might get a little better when it is broken in.

Roy