sounds like a plan let us know how it works out for you.. do you have a manual or auto tranny???

Auto

11mpg?! ouch...


I did 15.5 when I filled up last night as well as the fill-up before that.


since you have oversized tires, is your speedometer corrected for the tire size? where are you getting your miles per tank from?


I use my in-dash navigation to pull miles since my speedometer is off. GPS doesn't care about your tire size :tu:

I used a GPS to find my miles

clean your MAP and IAT sensors. might help a bit.

128:1 mix of 2-cycle oil helps slightly as well + it helps lubricate the injection pump.

Just got done cleaning them ill try the 2 stroke oil also
Have a bhaf ordered gona try that to

make sure it is TC-W3 2-cycle oil (like wally world supertech) you want it to be ashless so it doesn't add carbon buildup in the motor.

So you are basically adding 1qt 2cycle oil to a full tank of fuel?

I have also heard of people mixing in used tranny fluid in their fuel, has anyone else heard of this?

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DS

sent from the Honey Badger Nexus

i have seen people use ATF fluid but that was in a powerstroke, but haven't seen it in a cummins. not to say it wouldnt work just saying idk anyone who has used it. the guy with the 7.3 had a transmission shop and he ran it through a few filters, and im pretty sure he cut it with diesel too. if you google it you can prolly find the article. IDK how it does for fuel mileage though. I also get better fuel mileage with my tuner on the power setting. i have a quadzilla xzt+ so it only has three settings. power, mileage and stock. You just have to keep your foot out of it. Are you running any mufflers or cats?