9 MPG

[Braydenx]

X5M with BM3 stage 1 93 tune, 6:4 highway:local, only 180 miles for almost a full tank around 20 gallon, didn't pay attention previously at all, now I realized those EVs with ~200 miles is perfectly fine for me or at least I'll have no issue getting used to them lol

[tfunk88]

Ummmm are you flooring it the whole time everywhere you go? 😳

[MBoss_F86]

My X6M F86 with stage 1 93 MHD tune gives me ~22 on highway and 17 local when I drive conservatively. If I drive it as an M car I get around 14. I drove around 1000 miles last weekend on 80 mph cruise I got 389 miles out of 18 gallons

You definitely have something else causing such a low mpg. Do you have any codes? Are you using top tier gas? Did you check if your air filters, MAF sensors are clean? I would also check O2 sensors

[Qsilver7]

What is your avg MPH? That plays a big factor, too. A low average MPH will usually coincide with a lower MPG.

Saying 6:4 (highway:local) is less of an indicator of your driving situation versus posting your actual avg MPH because it takes into account bumper to bumper traffic (excess idling on the highway) and whether your local driving is timed lights on long parkways vs stop-n-go block-to-block stop signs or traffic lights.

[cpow99]

Try this CCV hose replacement. I had a similar issue and saw a +5MPG improvement.

https://f15.bimmerpost.com/forums/sh...php?p=29957928