[chenry]

Well thanks to my 15 year old daughters soccer success I had the privilege (cough cough) of logging 400 miles of highway driving over each of the last two weekends traveling between SoCal and the high desert for games. While I typically run 7:1 of CA91 gold to E85 - I truly didn't want to deal with it over the weekends.

Called Alex...and he said "sure no problem drop in the 91 your car and tune will adapt"

So I did and all was good 800 miles with the cruise set at 80 and obviously with circumstances a couple incidents of +/- relative to that speed. Great MPG and just moseying along.

Car ran like a champ, now I'm home and I dropped E back in tank. All good love the adaptability. Power was down of course as you would expect, but not the time to care. Daughter asleep in car, car cruising safely comfortably on 91.

[GT500R]

What’s a full tank in the 340? 16 gallons?

I agree and love flexibility to run different fuel and literally change nothing.

[bmw22915]

Originally Posted by GT500R

What’s a full tank in the 340? 16 gallons?

I agree and love flexibility to run different fuel and literally change nothing.

Either 15 or 16 gallons

[Beek]

Originally Posted by GT500R

What’s a full tank in the 340? 16 gallons?

I agree and love flexibility to run different fuel and literally change nothing.

Manual says approx 15.8 us gal.

[eksigned]

Have you tried running 3 gallons? Seems to be the sweet spot for me, personally.

chenry