Adjustable fueling options with x3

[Jensanity]

Hey, guys, on my x3 there are options of going 2.0, 4.0, etc. richer or leaner...what type of scaling is that?

 

[Jefe]

Its been a while since I've messed with that but I believe they are referring to tenths. Very minimal

 

[Jensanity]

Thanks, bud. I decided to just have revision done through my tuner because it appeared to lean my a/f up over a full point by simply going "2 leaner"
Went from 10.8 or so to 12.2 or more (bailed out as soon as I seen that number)