2003 7.3 improve milage
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Joined: Apr 2003
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2003 7.3 improve milage
i have a 2003 7.3 deisle 4x4superduty dually .i only have 1800 miles on it and only get 12.9 to 14.6 miles to a gallon .will the milage increase as i break it in or do i have to have a chip installed to improve milage .when i bought the truck the sales rep told me i would get 18 to 21 loaded or not.iv heard of chips being used to improve power ,im mainly interested in economy. and will the chip affect the transmission.any help appreciated
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Joined: Mar 2003
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From: Red Bluff, Ca.
2003 7.3 improve milage
Originally posted by bigbass
i have a 2003 7.3 deisle 4x4superduty dually .i only have 1800 miles on it and only get 12.9 to 14.6 miles to a gallon .will the milage increase as i break it in or do i have to have a chip installed to improve milage .when i bought the truck the sales rep told me i would get 18 to 21 loaded or not.iv heard of chips being used to improve power ,im mainly interested in economy. and will the chip affect the transmission.any help appreciated
i have a 2003 7.3 deisle 4x4superduty dually .i only have 1800 miles on it and only get 12.9 to 14.6 miles to a gallon .will the milage increase as i break it in or do i have to have a chip installed to improve milage .when i bought the truck the sales rep told me i would get 18 to 21 loaded or not.iv heard of chips being used to improve power ,im mainly interested in economy. and will the chip affect the transmission.any help appreciated
Frank
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Joined: May 2003
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From: rural alexander county
2003 7.3 improve milage
get a k&n air filter and chop off the muffler. i have a 03 f-250 PSD 4X4 cc and when i pulled off the lot, i was getting around 13.9 to 15.0 now i arrange from 16.5 to 19 mpg
New User
Joined: Mar 2003
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From: Red Bluff, Ca.
2003 7.3 improve milage
Originally posted by bowtie_blocker
get a k&n air filter and chop off the muffler. i have a 03 f-250 PSD 4X4 cc and when i pulled off the lot, i was getting around 13.9 to 15.0 now i arrange from 16.5 to 19 mpg
get a k&n air filter and chop off the muffler. i have a 03 f-250 PSD 4X4 cc and when i pulled off the lot, i was getting around 13.9 to 15.0 now i arrange from 16.5 to 19 mpg
As an update... I have been running the SCMT @ 80hp with an Amsoil air filter. I am averaging 14mpg. I could do much better if I would slow down on the hiway. I usally run 75mph most of the time.
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Joined: Sep 2001
Posts: 206
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From: Louisville USA
2003 7.3 improve milage
As I found out on this board and other locations people say they get 18-20mpg in a diesel, thats right when on Highway Only! ANY city driving makes you get 12-15mpg, If you see better, you have a clogged filter or pinched fuel line.
Hope this makes you feel better, and remember on highway you want to keep it by 2,000 rpm's this is your best burn, and as the dealer said towing or not 18 thats right on highway, all you are doing is pulling dead weight, when you accelerate from stoplight to stopsign you EAT fuel!
I am gogin to try the K&N, but chipin it helps, by 1.5 avg MPG some people get better, some worse, it is for preformance, and more preformance = more fuel.
As one of the FTE moderators said "Like what MPG you get because you are essentialy driving a 4x8 pieve of plywood down the street!"
BTW My cousine's truck is a 99 250 V10 and he gets 12mpg on the highway.
Jt
Hope this makes you feel better, and remember on highway you want to keep it by 2,000 rpm's this is your best burn, and as the dealer said towing or not 18 thats right on highway, all you are doing is pulling dead weight, when you accelerate from stoplight to stopsign you EAT fuel!
I am gogin to try the K&N, but chipin it helps, by 1.5 avg MPG some people get better, some worse, it is for preformance, and more preformance = more fuel.
As one of the FTE moderators said "Like what MPG you get because you are essentialy driving a 4x8 pieve of plywood down the street!"
BTW My cousine's truck is a 99 250 V10 and he gets 12mpg on the highway.
Jt
Post Fiend
Joined: Aug 2002
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From: Denton,TX
2003 7.3 improve milage
Don't use the K&N, IT WILL let dust into your intake.
Mileage should improve after the breakin. Don't be fooled if you add an aftermarket air intake now, the mileage would improve anyway. Only problem with mods that are supposed to improve mileage is that most guys can't keep their foot out of it and end up getting worse mileage.
Mileage should improve after the breakin. Don't be fooled if you add an aftermarket air intake now, the mileage would improve anyway. Only problem with mods that are supposed to improve mileage is that most guys can't keep their foot out of it and end up getting worse mileage.
Senior User
Joined: Sep 2001
Posts: 206
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From: Louisville USA
2003 7.3 improve milage
So you say that a K&N lets dust in the intake?
And for break-in, does that apply to me? 97,000miles and 5k after new turbo?
Also I drive at 70mph to 75 right at or under 2k RPMs.
Also what is a ok ammount of smoke, I feel mine is toom uch, I never smelled or saw it until this new turbo, now I see it when backing up and driving usual on roads, at nigth I can see it better, and the temp is from 50-70f.
And for break-in, does that apply to me? 97,000miles and 5k after new turbo?
Also I drive at 70mph to 75 right at or under 2k RPMs.
Also what is a ok ammount of smoke, I feel mine is toom uch, I never smelled or saw it until this new turbo, now I see it when backing up and driving usual on roads, at nigth I can see it better, and the temp is from 50-70f.
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New User
Joined: Mar 2003
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From: Red Bluff, Ca.
2003 7.3 improve milage
Originally posted by chspyder
So you say that a K&N lets dust in the intake?
And for break-in, does that apply to me? 97,000miles and 5k after new turbo?
Also I drive at 70mph to 75 right at or under 2k RPMs.
Also what is a ok ammount of smoke, I feel mine is toom uch, I never smelled or saw it until this new turbo, now I see it when backing up and driving usual on roads, at nigth I can see it better, and the temp is from 50-70f.
So you say that a K&N lets dust in the intake?
And for break-in, does that apply to me? 97,000miles and 5k after new turbo?
Also I drive at 70mph to 75 right at or under 2k RPMs.
Also what is a ok ammount of smoke, I feel mine is toom uch, I never smelled or saw it until this new turbo, now I see it when backing up and driving usual on roads, at nigth I can see it better, and the temp is from 50-70f.
Frank
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Senior User
Joined: Sep 2001
Posts: 206
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From: Louisville USA
2003 7.3 improve milage
3.73s and 285x74xr16s the tire makes up for it and the speedo is calibarated so I believe I am on target. And I have an auto tranny too.
Also forgot I am at 2k at 75mph
Jt
Also forgot I am at 2k at 75mph
Jt
New User
Joined: Mar 2003
Posts: 17
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From: Red Bluff, Ca.
2003 7.3 improve milage
Originally posted by chspyder
3.73s and 285x74xr16s the tire makes up for it and the speedo is calibarated so I believe I am on target. And I have an auto tranny too.
Also forgot I am at 2k at 75mph
Jt
3.73s and 285x74xr16s the tire makes up for it and the speedo is calibarated so I believe I am on target. And I have an auto tranny too.
Also forgot I am at 2k at 75mph
Jt
Frank
Senior User
Joined: Sep 2001
Posts: 206
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From: Louisville USA
2003 7.3 improve milage
I have seen the new trucks, now I know why there appears to have a much larger fenderwell.
As a tire guy once told me "You'll Never Fill That Fenderwell!"
He was right you get a tire that fills it and you will hit your top of the wells! :-(
Jt
As a tire guy once told me "You'll Never Fill That Fenderwell!"
He was right you get a tire that fills it and you will hit your top of the wells! :-(
Jt