[Atl3128]

So a while back I got an E30prx tune from MPT and I have to say I was pretty impressed with the power gains. Today I went to my usual gas stations which is normally e75 in the winter so I filled up with 11 gallons of ethanol and 25gal of 93 well after filling up I realized it wasn't E75 but was E65 so that puts me at E27. Is this anything I should be concerned with?

 

[TOWMA8R]

no, just monitor it........... when you get a few miles in it, add a couple of gallons, you will be fine

I personally like to be E35 if I am running the E30 tune

 

[Atl3128]

no, just monitor it........... when you get a few miles in it, add a couple of gallons, you will be fine

I personally like to be E35 if I am running the E30 tune

Thanks that's kinda what I was thinking just wanted some confirmation lol.

 

[mass-hole]

Yes, your air fuel ratio will be off by .9%

 

[Trav16]

How are you currently monitoring what your motor is seeing?

 

[Atl3128]

How are you currently monitoring what your motor is seeing?

Well generally I just test the actual ethanol content at the pump and put the correct amount of "e85" and 93 in to get to E30

 

[Trav16]

Well generally I just test the actual ethanol content at the pump and put the correct amount of "e85" and 93 in to get to E30

mag so you don’t have an inline sensor to monitor?

 

[Atl3128]

mag so you don’t have an inline sensor to monitor?

No I don't. I just wait until I'm as close to empty as possible and then calculate the proper ratios.

 

[Bruce_Wayne]

So a while back I got an E30prx tune from MPT and I have to say I was pretty impressed with the power gains. Today I went to my usual gas stations which is normally e75 in the winter so I filled up with 11 gallons of ethanol and 25gal of 93 well after filling up I realized it wasn't E75 but was E65 so that puts me at E27. Is this anything I should be concerned with?

I encourage you to reach out to MPT and maybe request one of their tuners respond to your question. Questions like, is MY tune meant for E30 and below, E30-E40, E30-E50? As I went from 93, to blend, to stronger blend, and then to E85 different tuners said different things.

My EZ lynk and tuning would display the E content but would sometimes fluctuate greatly and I was not setup for E85. I have went back to a SCT tuner and I don't know how to see the E content but I am also setup for E85 now.

I hope this helps you out.