Increasing mileage
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
I don't think the larger tires are hurting you as much as some would claim.
I can get damn near 20mpg at 70MPH with my truck. I have 20" Harley Wheels with 275/65/20 tires which are 34.1" tall
I can get damn near 20mpg at 70MPH with my truck. I have 20" Harley Wheels with 275/65/20 tires which are 34.1" tall
Lead Driver
Joined: Jul 2004
Posts: 6,950
Likes: 510
From: Foothills, CA
Since you have a fairly slim width I can see getting decent mileage. I have always thought it was more tire width, not just height, that causes the extra drag...
More Turbo
Joined: May 2015
Posts: 670
Likes: 13
From: Nampa, ID
Don't forget those back seats. dead weight. same goes for the airbags and the seatbelts. Why should those things get a free ride?
on a serious note, I have noticed better city mileage with moderate acceleration, as opposed to granny driving. I think it has do with the fact that I am only on the throttle for 5 or 6 seconds to get to 35-45mph, instead of staying on the throttle for a long time accelerating slowly. Of course, hard acceleration doesn't yield good MPGs, but its just too tempting with this truck . These things can move unnaturally fast for their size.
Tuned
Joined: May 2014
Posts: 302
Likes: 7
From: Oregon
on a serious note, I have noticed better city mileage with moderate acceleration, as opposed to granny driving. I think it has do with the fact that I am only on the throttle for 5 or 6 seconds to get to 35-45mph, instead of staying on the throttle for a long time accelerating slowly. Of course, hard acceleration doesn't yield good MPGs, but its just too tempting with this truck . These things can move unnaturally fast for their size.
What he said.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Don't forget those back seats. dead weight. same goes for the airbags and the seatbelts. Why should those things get a free ride?
on a serious note, I have noticed better city mileage with moderate acceleration, as opposed to granny driving. I think it has do with the fact that I am only on the throttle for 5 or 6 seconds to get to 35-45mph, instead of staying on the throttle for a long time accelerating slowly. Of course, hard acceleration doesn't yield good MPGs, but its just too tempting with this truck . These things can move unnaturally fast for their size.
on a serious note, I have noticed better city mileage with moderate acceleration, as opposed to granny driving. I think it has do with the fact that I am only on the throttle for 5 or 6 seconds to get to 35-45mph, instead of staying on the throttle for a long time accelerating slowly. Of course, hard acceleration doesn't yield good MPGs, but its just too tempting with this truck . These things can move unnaturally fast for their size.
and not creeping up on it slowly. Also this engine seems to perform better
when under some boost.
While we are on the toss the seats and seat belts out if the driver is large
aka FAT dropping the extra pounds will do a few things one of them being
increasing the chances of living longer to see how just taking a few pounds
off the truck can save some cash over the long haul.
AND YES I CAN STAND TO LOOSE SOME OF MY OWN BODY FAT. So I am not
singling anyone else out with that comment.
Sean
Tuned
Joined: May 2014
Posts: 302
Likes: 7
From: Oregon
While we are on the toss the seats and seat belts out if the driver is large
aka FAT dropping the extra pounds will do a few things one of them being
increasing the chances of living longer to see how just taking a few pounds
off the truck can save some cash over the long haul.
aka FAT dropping the extra pounds will do a few things one of them being
increasing the chances of living longer to see how just taking a few pounds
off the truck can save some cash over the long haul.
Lost 30 lbs since March.
More Turbo
Joined: May 2015
Posts: 670
Likes: 13
From: Nampa, ID
I'm still partial to the seat belts and air bags. They only slow you down...
...in a crash.
wear your seat belts kids.
Back to being serious, tire pressure has made a vey noticeable different in all my vehicles. When I had my mustang, I would get 20mpg on the highway with low-ish tires. I filled them all to 40psi from 25-30psi and got 25mpg highway after that.
The single biggest thing that has increased my fuel economy on my 6.0 was a tune. went from 12mpg city to 16mpg. highway went from 16mpg to nearly 20. The added power, lower EGTs and peace of mind, knowing my EGR is essentially disabled, is only a bonus.
...in a crash.
wear your seat belts kids.
Back to being serious, tire pressure has made a vey noticeable different in all my vehicles. When I had my mustang, I would get 20mpg on the highway with low-ish tires. I filled them all to 40psi from 25-30psi and got 25mpg highway after that.
The single biggest thing that has increased my fuel economy on my 6.0 was a tune. went from 12mpg city to 16mpg. highway went from 16mpg to nearly 20. The added power, lower EGTs and peace of mind, knowing my EGR is essentially disabled, is only a bonus.
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Senior User
Joined: Mar 2014
Posts: 193
Likes: 1
OK guys, I'll see what I can do about the extra weight ( I don't want to lose too much or my suspension will be higher causing wind resistance so weight placement will also be important 
) I'll bring the tires to the max air pressure, and I'll keep away from racing rice burners and boosted launches and see what my mileage looks like after that. Another thing to take note of is that maybe the truck is still learning the SRL- I have 300 miles of driving with that tune. Thank you everyone for the help- I am sure before long I will be teaching them priuses what real mpg looks like 
) I'll bring the tires to the max air pressure, and I'll keep away from racing rice burners and boosted launches and see what my mileage looks like after that. Another thing to take note of is that maybe the truck is still learning the SRL- I have 300 miles of driving with that tune. Thank you everyone for the help- I am sure before long I will be teaching them priuses what real mpg looks like
Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
Why no mention of the tuner/tune?
More Turbo
Joined: May 2015
Posts: 670
Likes: 13
From: Nampa, ID
You don't have to run at the max pressure rating for the tires, but higher is generally better for fuel economy. My other truck (a 2001 7.3 dually) has more center tread wear than the rest of the tread on the rear tires, due to running at max tire pressure.
FWIW, I prefer the 6.0 over the 7.3
Fleet Mechanic
Joined: Feb 2007
Posts: 1,318
Likes: 10
From: Mid Atlantic
One other thing I forgot to mention is the use of a fuel additive.
I use Stanadyne Performance and that alone gets me an additional 1 mpg on the highway.
Basically it pays for itself with the savings.
I use Stanadyne Performance and that alone gets me an additional 1 mpg on the highway.
Basically it pays for itself with the savings.
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
No offense but that is a debatable subject.
Senior User
Joined: Mar 2015
Posts: 157
Likes: 0
From: Niagara Falls, NY
What tune do you use? I want one for a little more fun and better mileage as well.