Originally Posted by bovill 6.0
Its at shop now wont be torn down till next week but ill post what he finds. Cant wait to get it back with no worries. Im having hp oil system rebuilt new pump and any o rings and tubes egr delete and lets hope thats all for this year. should i have them put a tuner in while its in? not looking for power just fuel mileage. I travel two plus hours to some jobs and fuel is around 4.18 a gallon. So thats easy three hundred a week in just fuel. Any ideas on how to get a bit better than 380 miles out of 28 gallons 12 to 14 per gallon now or just get a prius.
I'll tell you what was told to me on the first powerstroke forum I ever signed up on, and I should have listened...
"Never mod for fuel mileage. Mod for power, and if you get some extra MPG's, be very happy"
Now with that said, I bought a tuner with the hopes of "2-4mpg increase!"... yeah right. Could you gain mileage? Probably. Will you? Probably not. It's a catch-22. The hottest tunes available (via custom tuning with an SCT), offer the best mileage, but only if you can keep your foot out of it. Once you've gone WOT on an x-race tune or something similar, the smile is hard to wipe away, and WOT runs become more addictive than crack.
You start with a small tune, then it's not enough, then you're into the hot tunes, then your headgaskets are blown, now you're putting ARP studs in... it just keeps going.
If you want to do a tuner, you can do that yourself at any time, no need to have your guy do it. Very simple. You get tunes via email, load them from you computer to your SCT, then from the SCT to the truck, very simple. We can help you with that too.
I say get your oil issue resolved FIRST. Once you've got that squared away and know there are no more issues with the truck, then we can talk tuners.
Your mileage isn't really out of this world. I get between 13 and 15mpg. 29 gallon tank btw. You're probalby not recording fuel mileage correctly anyways (if you are, my apologies), most people don't realize that when the pump clicks off the tank isn't anywhere near full. The only true way to record mileage is to keep filling... keep filling and filling and filling, very slowly to avoid bubbles. Stop once you see fuel resting in the fuel filler neck. That's the ONLY way to get it to the same spot every time. If you're just filling til it clicks off, your fuel amount in the tank is different every time.