engine flash date...
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Mountain Pass
Joined: Sep 2003
Posts: 143
Likes: 0
From: So Cal
engine flash date...
I have an '04 PSD with a 02-28-2004 engine date and the trucks door sticker says 03-2004.
My question is do I need a re-flash? I get ~15mpg no matter how I drive and I typically drive like a grandma. I will ocassionally step on it to pass but that only occurs like once a day.
I have ~4k miles on it and drive it every day to work (32miles one way) going ~65mph. I have driven steep grades on the weekends and have never towed. I used to get ~16mpg and then once the 6" lift w/ 35" BFG ATs were installed, it immediatly dropped to 15mpg.
So... I have heard you guys talk about getting more like 19mpg and hoping a re-flash might help?
BTW - I am having the muffler removed tomorrow and having it replaced w/ a straight pipe... hoping that might give me 1-2 more mpg. Maybe a soft/cheap tonnue (sp?) cover might help too?
My question is do I need a re-flash? I get ~15mpg no matter how I drive and I typically drive like a grandma. I will ocassionally step on it to pass but that only occurs like once a day.
I have ~4k miles on it and drive it every day to work (32miles one way) going ~65mph. I have driven steep grades on the weekends and have never towed. I used to get ~16mpg and then once the 6" lift w/ 35" BFG ATs were installed, it immediatly dropped to 15mpg.
So... I have heard you guys talk about getting more like 19mpg and hoping a re-flash might help?
BTW - I am having the muffler removed tomorrow and having it replaced w/ a straight pipe... hoping that might give me 1-2 more mpg. Maybe a soft/cheap tonnue (sp?) cover might help too?
Postmaster
Joined: Aug 2003
Posts: 4,483
Likes: 2
From: Central Texas
The F250SD stock has the aerodynamics of a beveled brick. Putting a 6" lift with 35 tires just added a drag chute. Have you calibrated your speedometer for the new 35s? I don't think Ford dealers will recalibrate it for tires that size. There are other variables associated with the tires that will have an effect on the mileage.
Junior User
Joined: Jan 2004
Posts: 70
Likes: 0
From: Roy, Washington
[QUOTE=kemerick] I used to get ~16mpg and then once the 6" lift w/ 35" BFG ATs were installed, it immediatly dropped to 15mpg.
QUOTE]
My MPG dropped with the 315's about 1-1.5 mpgs. I regained it by disconnecting the EGR and hope to improve that by installing the Predator this week. It still amazes me that the mpg's are around 16 for a truck that weighs more on the front axle as a Toy Tacoma 4 door weighs period. ( Something I noticed on my last dump run)
QUOTE]
My MPG dropped with the 315's about 1-1.5 mpgs. I regained it by disconnecting the EGR and hope to improve that by installing the Predator this week. It still amazes me that the mpg's are around 16 for a truck that weighs more on the front axle as a Toy Tacoma 4 door weighs period. ( Something I noticed on my last dump run)
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