I’m on E85 now. I have 25 miles to empty can I just add 93 now ?

[Unas2k5]

If I’m not going WOT and not going high in RPM. I have 25 miles till empty if I just add 93 and drive around slowly it just mix would I be causing damage or do I have to drain the tank? Also for draining the tank, I believe I’m supposed to remove a relay which relay I can’t find that information anywhere?

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[junits15]

add the 93, flash your non-e85 tune drive gently for like 15 minutes and you're good to go.

That much e85 will do nothing signifigant, its going to be under 20% total tank concentration assuming 14mpg and actual e85. Which is low enough to where it doesn't matter.

 

[Unas2k5]

Thanks guys I also have a fore dual fuel system if that makes a difference

 

[Andy13186]

Thanks guys I also have a fore dual fuel system if that makes a difference

usually want to keep those submerged as much as possible to lessen the heat. Should try to keep a half tank in atleast most of the time, and I wouldnt go WOT below half or 1/3 tank

 

[Unas2k5]

usually want to keep those submerged as much as possible to lessen the heat. Should try to keep a half tank in atleast most of the time, and I wouldnt go WOT below half or 1/3 tank

Thank you for your input. I have never gone under a half a tank of E85. I’m only Going this low because I’m trying to switch fuel and I’m trying to figure out how low I should go before putting in 93

 

[jpjr501]

You don't want to run the Fore pumps empty like down to 5, not good. At 25 it's low enough.

 

[Unas2k5]

Look 7.3 just driving regular speed limit type speeds lol I’ll probably get like 12 with 93? What do you guys think?

 

[wazslow]

Don't you have a return style fuel system? Just pull the return line at the regulator. Attach a hose to it and pump out the fuel into a fuel can by starting the car. It's easy to do.

 

[Unas2k5]

Ok I figured it out. That’s trip 1 and trip 2 that had different averages. Current one is 7.3 and 15 til empty

 

[HKusp]

Just put 93 in it, flash your tune, drive sensibly for 15-20 minutes and you're good to go. You are over-thinking it.

 

[Unas2k5]

Ok thanks I’m about to fill up I’m at 8 miles to E. I’m also on my E85 pulley and belt I have no choice but to baby it

 

[Unas2k5]

So I put 12.8 gallons of 93 and flashed it. Car when I started it was revving aggressively now it’s starting to calm down ? Is that normal ?

 

[Unas2k5]

No more white smoke I think it’s inhaling the 93 now

 

[LOL WUT]

So I put 12.8 gallons of 93 and flashed it. Car when I started it was revving aggressively now it’s starting to calm down ? Is that normal ?

Yes as the system was still primed with E85 and the ECU was anticipating 93 via the tune. Totally normal for an abnormal start to occur the first time.

 

[Unas2k5]

Alrighty thank you guys! NAPA has full synthetic Mobil one for 6.99!! 5W50 too!
Now I can get a wash and paint correction !

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