6.2 fuel needs

Reply Subscribe

Thread Tools

Search this Thread

Feb 2, 2015 | 10:53 PM

jabberwoki

Thread Starter

Cross-Country

Joined: Feb 2013

Posts: 69

Likes: 18

From: puyallup

6.2 fuel needs

Does the 6.2 in a 2014 f150 need premium fuel or can they run ok on regular?
And what real!!! mpg will I get 3:55 rear end 2 wheel drive.
Thanks looking real hard at one now

Feb 3, 2015 | 06:20 AM

22rimfire

Senior User

Joined: May 2013

Posts: 347

Likes: 2

I've never put anything but reg (87 Octane), in mine, even when towing our trailer and never had a problem. If there's nothing wrong with the engine, and it's not re-tuned for the higher octane your just wasting your money IMHO. I have a 4X4 with 3:73 gears, so my mileage would be a little worse than a 2WD with 3:55's, but I'll give it to you anyway. 13 overall average, 16 HWY, and 8-10 towing 7500 lbs.

Feb 3, 2015 | 11:39 AM

Big Vic

Senior User

Joined: Aug 2013

Posts: 122

Likes: 0

The only reason I have heard to run premium fuel here in No. CA is that premium does not contain ethanol, and 87 may.

Feb 8, 2015 | 02:33 PM

clintbonnie

Cargo Master

Joined: Jun 2003

Posts: 3,292

Likes: 6

From: Ardenvoir, Washington

This is what Ford says about Fuel economy, F150 2014 :

F-150 Specifications
Highlights
horsespower: 411 @ 5500 rpm (6.2L V8)*
torque: 434 @ 4500 rpm (6.2L V8)*
Fuel Economy and Engine Highlights
Engine Type 6/2L
13/18/15 (4x2) 12/16/13 (4x4) 11/16/13 (Raptor 4x4)
(city/hiway/combined

*Using 93-octane fuel.
(got this info from: 2014 Ford F-150 | View Full Specification Library | Ford.com

Does this indicate you must use 93 octane ?
What does the owners manual say ?
I got a new F350 on order with the 6.2L .. I hope I don't have to use 93 octane..!

Feb 8, 2015 | 03:07 PM

22rimfire

Senior User

Joined: May 2013

Posts: 347

Likes: 2

Quote:

Originally Posted by clintbonnie

The 6.2 in SuperDutys is tuned at 385/405, which is lower than the raptor/150. This is for longevity while working hard. Some will say you will get benefit from higher octane, but without a re-tune, I have my doubts. No, yo do not have to use premium in your 350.

Feb 8, 2015 | 06:37 PM

clintbonnie

Cargo Master

Joined: Jun 2003

Posts: 3,292

Likes: 6

From: Ardenvoir, Washington

Quote:

Originally Posted by 22rimfire

OK.. that sounds good to me.. I shall not worry then..!! thx

Feb 8, 2015 | 07:45 PM

rvpuller

Moderator

Joined: May 2004

Posts: 6,508

Likes: 899

From: Home Base Nebraska

Quote:

Originally Posted by clintbonnie

I'm thinking that it will run on 87 but to get the max HP you would need 93, on my F350 I was running high altitude 85 fuel out west and took a wrong turn and ended up at 700 ft, it ran fine but it did have reduced power until we filled with 87 and went back up into the mountains. With all the knock sensors I think it will adjust to about any octane.

Denny

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Feb 11, 2015 | 10:47 AM

22rimfire

Senior User

Joined: May 2013

Posts: 347

Likes: 2

Quote:

Originally Posted by rvpuller

That's interesting for sure Denny. So you're saying even though the 6.2 doesn't NEED 93 octane, it will adjust and actually benefit from it? Cause if it's a significant improvement, I don't mind paying for it. I ran a 91 octane tune in my '03 F150 for ten years, and loved it. I have decided to run this one stock though, at least until the warranty is up.

Feb 11, 2015 | 02:20 PM

#10

rvpuller

Moderator

Joined: May 2004

Posts: 6,508

Likes: 899

From: Home Base Nebraska

Quote:

Originally Posted by 22rimfire

I don't know if running the stock tune that 91 would make any difference but with a tune it may. But I also look at it this way, years back any motor that had over 8 to 1 compression would ping on 87 but the 6.2 has 9.8 to 1 so maybe it well run better on 91, the computer may advance the timing giving a little more power, I may try it one day when I'm pulling. Things have really changed from the day when I built motors for my trucks, I would always have a problem with the timing after I shaved the heads and increased the compression just a little.

Denny

Feb 11, 2015 | 03:18 PM

#11

Good listener

Senior User

Joined: Feb 2015

Posts: 360

Likes: 3

From: Michigan

The owners manual for 2015 has 87 octane as the minimum, but suggests higher octane at altitudes may be needed.

Feb 11, 2015 | 05:35 PM

#12

rvpuller

Moderator

Joined: May 2004

Posts: 6,508

Likes: 899

From: Home Base Nebraska

Quote:

Originally Posted by Good listener

The owners manual for 2015 has 87 octane as the minimum, but suggests higher octane at altitudes may be needed.

The higher the altitude the lower octane needed, sea level requires more octane, it's all about oxygen content.

Denny

Feb 11, 2015 | 06:38 PM

#13

Good listener

Senior User

Joined: Feb 2015

Posts: 360

Likes: 3

From: Michigan

Quote:

Originally Posted by rvpuller

The higher the altitude the lower octane needed, sea level requires more octane, it's all about oxygen content.

Denny

I'm a good listener but a lousy reader. I checked again and the manual said to avoid fuel less that 87 octane which is sometimes AVAILABLE in high altitude areas. Thanks for the correction. It seems like good advice when traveling to check the pump octane rating.

Feb 11, 2015 | 06:47 PM

#14

rvpuller

Moderator

Joined: May 2004

Posts: 6,508

Likes: 899

From: Home Base Nebraska

Quote:

Originally Posted by Good listener

I'm a good listener but a lousy reader. I checked again and the manual said to avoid fuel less that 87 octane which is sometimes AVAILABLE in high altitude areas. Thanks for the correction.

I've used 85 in the mountains for years but you have to be careful so when you drop down in altitude there isn't much left in the tank.

Denny