17.4 MPH

[CoronaRaptor]

According to the Lie-O-Meter I was averaging 16-16.5 on the 2018. Until Branden made me switch to 87 octane from 93 however many months ago. Down to 14.6-14.8. If I'm on the highway, at least half the time for sure, I am doing 75-85.

I find the higher octane does boost the mpg even in my Gen 1, but I’m not buying anything but 87 up here in Canada atm, and I’m barely driving the raptor either. My Jeep is getting full duties lately!

 

[FordTechOne]

I find the higher octane does boost the mpg even in my Gen 1, but I’m not buying anything but 87 up here in Canada atm, and I’m barely driving the raptor either. My Jeep is getting full duties lately!

Makes sense. The F-150 6.2 was rated at 411HP on 91+, but being naturally aspirated I doubt you'd recover the difference in fuel expense. Hopefully your Jeep is more fuel efficient than my Hemi WK...

 

[GCATX]

I find the higher octane does boost the mpg even in my Gen 1, but I’m not buying anything but 87 up here in Canada atm, and I’m barely driving the raptor either. My Jeep is getting full duties lately!

Miles to empty went from 550 ish to under 500 too. A gen 2 with 87 is passable but nothing like on 93. This thing really tweaks up the timing when it senses the good whiskey. It's a bummer not running it.

 

[zemuron99]

Great in theory land, but in reality world- way more Gen 2s are in the 12-14 MPG range than the 16-18 MPG range. Same as 6.2Ls.

The ring packs dragging the cylinder walls at low loads is what matters more than anything- by far, for mileage differences in the same vehicle.

You act like the 6.2L is a 60 year old engine design. It's a newer design than the Cyclone engine.

Some data from Fuelly would disagree with you:


This is for 2017 Raptors. 18 were in the 12-14 MPG range, 21 in the 15-17 range. Looking at 18's, 25 were in the 12-14 MPG range, 46 in the 15-17 range, and for '19's, 11 were in the 12-14 range, and 23 in the 15-17 range. The 20+ years didn't have large enough numbers for me to include here, but clearly with almost 2/3 of the total getting 15-17 MPG your statement is very likely untrue.

 

[zemuron99]

The 2017 data covers 44 vehicles, 901Kmiles with 2440 fill-ups, the '18 data covers 72 vehicles, 1.5 million miles, 4319 fill-ups and the 19 data is 38 trucks, 495K miles and 1420 fill-ups.

 

[thatJeepguy]

 

[CoronaRaptor]

^^^Impressive^^^^

 

[thatJeepguy]

I would have had 18mpg but i was doing some local driving which killed it. There seems to be a lot of drag on the transmission as it wont shift past 6th when the unit is cold at specific speeds.