Sasquatch 2.3 vs 2.7 MPG ? ? ? ?

[2fast4u]

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[Fly by Nite]

Bump! I'm somewhat considering changing my 2 dr BaseSquatch order from the 2.7 to 2.3.
Seems like there may be about a 2 mpg difference (18>20), which would be 30 miles on a 15 gal fill up, maybe $7 per tank. Over 10,000 miles it would be 500 gallons vs 556 with a 2.7, or $224 (@ $4/gal). Hardly seems worth the savings.

 

[EL in NH]

I have a 2.7 in my F150..the MPG increased about 2-3 MPG once I got some miles on the motor(15,000). They make em tight these days.

 

[lapazleo]

To answer the OP's question without just posting meaningless "this is what MPG I get with my truck and driving habits", there is likely little to no difference in MPGs between the two engines. The dominant factors in MPGs are going to be aerodynamics, weight, rolling resistance, gearing, etc. These will be identical between the two trucks. You essentially have two economy optimized small displacement turbo engines. Their fuel economy is likely to be nearly identical when in identical trucks.

If one were a naturally aspirated V8, or a supercharged V6, you might see a difference. But a turbo 4 vs turbo 6? It's unlikely you see much.

You forgot the biggest factor of all "the driver". The driver has a bigger effect than any other factor hands down.

 

[Bestdayever]

Just got home... 2.7 Sasquatch .... All interstate 1210 miles .... premium fuel.... 18.9@ 75mph...
Note: What a tiny fuel tank a two door has.

 

[Bronco1971]

You forgot the biggest factor of all "the driver". The driver has a bigger effect than any other factor hands down.

Agree, I can make the 2.7 Bronc get as little as 14-15 mpg driving around town by romping on it, on off throttle abruptly, etc. Most of the time when I drive like an adult, I'll get close to 19 mpg. On the highway, set the cruise at 5 over and the mileage can be around 21 mpg if you're not going up mountains.

It's interesting how little the overall mileage changes by spending hours off road.

As to the effect on range, it's minimal, most of the time on long trips you'll still be looking to refuel in the same areas. 2-door Broncos tank is small, we've gotta plan our trips with that as a parameter.

ETA: Top off appears to have a fairly substantial negative impact on highway mileage.

 

[22MavXLT]

2.3l on 35/12.5/20 with 2" lift, Non SAS, we average 18.5-19. Mostly driving on back roads to and from work. The occasional trip on the highway but not very often.

 

[cespinoz]

Edit— I have a 2.7. That was an important part.


I have an OB with 33” 265/70/18 A/T tires and I’m getting about 17 avg around town (DC area, lots of stop and go). During a recent 2500 mile road trip I calculated approx 20 mpg avg highway. Probably more like 19-20 mpg.

do you have any photos of your bronco? I haven't seen anywhere of someone having 265/70/18, which are the tires I'm looking at now.

 

[CarbonSteel]

My 2.7 is steady at a 18.5 average. Over 5k mikes now.

Same for mine in mixed driving. I am nearing 10K now. I do see 20-21 outside of Colorado when not hammering it and in Eco mode.

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