i go with RANGE display...it says around 350 / 17.4 Fuel Tank Capacity = 21ish MPG

 

just be glad you don't got a SuperCharger

to me, i would get it for the thrill drives but MPG would go down more...


what i did was Upgrade my Audio equipment and i find myself doing less spirited jaunts to enjoy the tunes and a free back massage

 

Man I can hit 30mpg on the freeway in my ‘14 awd 350. I’m in Canada so I’m always in L/100 but my lowest was 8.0 on a 50km 80% freeway trip, my commute to and from work.

in the city I average 18-15mpg, or 13.0L-15.0L per 100km. So it seems pretty similar to you guys. My difference is I am trac off, S+, M, 1000000% of the time. And I hammer it off the line if I’m at the front. 70/30 highway/city. Fuelly tells me I average 11.2 or 21mpg. Which for how I drive, I would say is pretty damn good. I got a heavy foot. My range always says about 550km ~340mi, when I refuel.

I find absolutely no difference driving in eco vs sport, as far as mpg goes. It’s all about your right foot. When I first got my car I drove eco for the first 6 months just to see. The difference is not worth driving like a grannie, IMO.

I been saying this forever in many threads. You guys gota figure out the drive by wire throttle. It’s a pain in the *** but once you figure it out you’ll get slightly better mileage.

 

I changed my spark plugs and made sure they were all gapped 0.043”. Im on my 2nd tank of gas and the mpg is rising from 24mpg to 25mpg. I believe my old plugs were gapped too small at 0.037” and not working as efficiently as they should. The factory installed plugs Only had 63,000 miles on them.