Is a programmer bad on a high mileage truck?

[shearer500]

my f250 has 165,000 miles on it and is stock. I want to get a programmer and friend of mine that works at a ford dealership said that it is bad to put a programmer on a truck with this many miles on it. I am just wondering if this is true. I am not really looking for much better performance, just better fuel mileage.

[cubalz]

Go for it. Won't hurt a thing. Your friend is clueless.

[shearer500]

I have heard that it can also mess up the heads. Also i am thinking of doing a cat delete.

[Younger1993]

I have a 2006 F350, I bought it with 155k on it. since then, I have had: studs put in, egr cooler delete, oil cooler, all after my programmer; however I knew that was going to happen whenever I bought the truck. 6.0s are notorious for having heads lift and egr problems, especially after you tune the monster. it really all depends on the tune, I was and still am running innovative diesel extreme street and race tunes by Eric on an sct, and my driving habits plus the big tune led to my 6.0 becoming a bulletproof monster

[worldwide73]

Without supporting mods, a tuner can/will find your weak spots...

[shearer500]

I am also thinking of doing the cat delete. should I just delete the cat or should i go with the full mbrp 4in turbo back. I dont want the truck to be super loud.

[caissiel]

Have my truck stock and for the last 4 years have used a Max Energy by Hyperteck and no problem like others have noted. The Hypertech programers test for months and they know what is bad for your truck.

[Hypertech]

The Max Energy unit will be fine to use on a high mileage truck. We optimize the tuning all the way through the rpm range so it will be more efficient. You should pick up power and fuel economy with the Max Energy

[studdgage]

Originally Posted by shearer500

my f250 has 165,000 miles on it and is stock. I want to get a programmer and friend of mine that works at a ford dealership said that it is bad to put a programmer on a truck with this many miles on it. I am just wondering if this is true. I am not really looking for much better performance, just better fuel mileage.

I have a 2001 7.3 L with 250,000 i run my edge on hot all the time still no problems except replacing the turbo but it went out because of a different reason. I say go for it wont hurt it if just for fuel mileage.