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Message: [QUOTE="Tree Trimmer, post: 53794, member: 716"] dunno tarm, i briefly talked to matt when i was ordering my chip, and i told him i had water inj, and i asked if i needed tuning adjustments for it. told him i run water in summer and ww fluid in winter. he said, "as long as you stay with ww fluid as the most meth you get, your fine with the tuning you have." i read/heard that if you run more than ww fluid, i will have to tweak your tune/tunes to accomodate more meth. it stands to reason that if a person is running 30% meth to water, or 50% meth to water, or what ever their ratio is, and meth being a fuel and all, you would need to compensate for it. regardless what your compensating with, you would need to change/allow for something. for instance. take your ex you just did. allowing you get your fuel issues resolved. now im goin to put a water inj kit on it. and in the tank im goin to mix the ratio at, lets grab a number, 50/50 meth/water. would you feel comfortable simply running that the way your tuning is? or would you attempt to compensate for it? you seen that video i posted on how much flow i had, now make half that meth. still wanna not at least try to compensate? i dont know chit about tuning, i know i turn a knob and my truck runs different becase pw, icp, and lots of other things change, so take the next little bit with a grain of salt. granted, like you said, its not metered 100% accurately, not tied to the pcm to be auto calculated into the tuning, but if you had it set up to inject based on boost, and you knew close approximates of what you injected, i.e. at 10 psi of boost im injecting X amount of water which includes X amount of meth, and so on with other boost numbers, you could get reasonably close. there fore you could make the boost "table(s)", modify other tables to allow for the meth. again, thats straight out of my ass, as i know nothing about tuning, thats just a tree trimmers brain churning out a scenario as one way the pcm could see the meth with a existing table. and tom. when the good ol' usa went to low/ultra low sulphur diesel, it lost some lubrication qualities. some ppl put two stroke oil in their tank, other ppl, like my self, put some water soluble machine oil in their water tanks. i myself dont like the idea of oil goin through my injectors. regardless of if its ok, or gonna hurt them, everyone has a opinion. my truck doesnt see oil in the fuel tank. its called a fuel tank, to be filled up with diesel. i feel that the fuel filter would sort some/most of the oil out anyways, thus making it plug/restrict faster. again, its a fuel filter, not a oil filter. isnt the fuel filter a finer mic anyways than a oil filter? granted, you could probably get our injectors to inject straight crisco if you so desired, might not get them to refill, but i would wager it would inject it at least that first time. [/QUOTE]