Newbie alert! 03 excursion with quistions

[deeprecon1]

I just bought a used 2003 LE excursion 4x4 diesel with 55k miles.

1. Average mpg has been 13.3 .... ?

Is there a better rear end set up for mpg savings ....

I plan on running some waste oil at a 50 / 50 mix during summer months.
" I live in California"


What chip has the best rep and for what?

Thanks

T

[Banshee34]

WELCOME DEEPRECON1!!!!

Someone should be on soon that can answer your questions!

Don't forget to setup your garage and post some pics!

[super_stroke]

last time i figured my mileage up it was 14.996 with the ts chip mostly in the 50hp position.

[mschn99]

deep, is your 03 a 7.3 or a 6.0???

as far as the veggie goes this could be critical......i would be leary of running that high of a mixture in a 6.0 although i cant honestly say ive seen first hand knoledge of what it would do to the injectors. if its a 7.3, Mix away.....

as far as MPG, the motors vary a little too, and more importanly what would cause low milage varies.......also, what is the current rear end gear ratio??.......and welcome to the forum!!! ......Marc

[deeprecon1]

Ratio ? not sure I need to get the info off the plate. I have the 7.3 ....

I like the idea of using peanut or vegi what ever I can get for less. I have seen bulk unused go for under 1.75 a gallon beats the 3.10 right now at the pump

T

[deeprecon1]

Well I guess I need to have the vehicle looked at.... inder 30 from dealer.

I cant seem to get better than 13.7 even at 60 mpg ! I do need to chip the thing.

I dont want to start a which one is better WAR .. but who has had luck with the 7.3 and chip for better mpg.

Name
Price
Plug and play
multi settings
Easy install

[Marty]

I wouldn't chip it for another 45K
I wouldn't run veggie oil in it for another 45K
I wouldn't use waste oil (like dino oil) ever
I would suggest keeping it under 2000rpms for best mpg
3.55's are better for hwy mpg but since you want to chip it I assume you want to go fast also... you won't win any redlight drag races with 3.55's. 3.55's are also less favorable for towing.
I would suggest flushing the trans, coolant, and changing all filters now. Keep up with maintainence and you can expect to have that truck for another 250,000miles. Just get out of the first 100k mark, or 2008 before you start modding it. Tust me, you'll have plenty of time to do this stuff later. I didn't want to wait, so I bought my truck right at 100,000 miles.

[Rodslinger]

Welcome to Powerstroke.org deeprecon!

[gcop]

Welcome! WOO-HOO Another Ex owner.

My 7.3 Ex gets around 17-19 city, and upwards of 22 if it is mostly highway. Mine has the TS performance 6-pos chip. And I don't think I have ever ran it in the 50HP setting LOL. It's 100HP+ or parked.

[Marty]

Oh, and I might be wrong, but I think my truck weighs more then an Ex, but I would like to add that over the past 8 tanks of fuel which over the past 8 tanks or 3,600 miles I've averaged 17.8 mpg hand calculated all including City/Hwy/Towing.


These miles include at least 500 miles of 3,000#-5,000# towing and daily driving mostly on secondary roads. There are no REAL highway miles in this calculation since I do not have the chance to travel them often. I have recorded on ealier long distance highway trips up to 23.2 mpg.