for me i get around 20ish mpg with a mix of mostly city driving and a few HW miles. i would say ur MPG is pretty good

 

When freeway I get about 26mpg. Mixed around 23mpg now.

It used to be higher prior to, stickier z1 tires and huge 2-3mpg drop on UK allignment.

 

I live in a rural area and much of my driving is cruising 45-60 while hitting every corner I meet pretty hard. I always get 25-30 mpg. Awesome!

 

Stickier tires don't get worse mileage in my experience.

I got 28-29mpg for my commute on winter tires and I got 28-29mpg for my commute on StarSpecs, and now I'm getting 28-29mpg on Sport Maxx TTs.

Rolling resistance for tires is all about how much a tire deforms and absorbs energy. Sport-oriented tires should actually do quite well in this regard, as they have large tread blocks and less void area, so less tread squirming around.

When I was working on an electric motorcycle project, we got rolling resistance data from Pirelli, and the lowest rolling resistance tires were at the high-performance end of the spectrum. But the differences for most of the tires was very small.


Alignment, particularly toe, will have an impact. I run minimal toe at both ends, zero up front, ~.2 total rear. When I had more like .5* total in back, I was getting ~2mpg worse mileage.

 

Just sharing my actual experience.

Say a 1-2mpg drop from z101 to z1 and another 3-4mpg drop with allignment.

Total drop from 31-32 to 25-26. Freeway, same area, always using cruise.

 

In just highway driving, I've seen as much as 32 mpg. Most driving though....in a mix of highway and city.....I'm in the 24 - 25 range.

Not bad at all in my book. Honestly, far better than I'd have expected for a performance car.

Depends a lot though on how had you are on the gas. I track my mpg, but really don't care that much. It's all about how much fun it is, and fun is in the loud pedal.

 

I'm averaging between 23-26 mpg in my daily commute. Most of it is city driving w/ the AC on.

 

I have kept stats on my S since I got her. Most of my miles have been on open road with the top down (90+%)

Total miles = 22,317
Ave mpg for all miles = 28.604
Ave mpg for highest 5 tanks = 33.70
Ave mpg for lowest 5 tanks = 23.69
Single highest tank = 35.10 (see link below)
Single lowest tank = 20.56

https://www.s2ki.com/forums/index.php?showt...&#entry13736168

 

I've owned the car for two years and haven't bothered to check the MPG :-)

My only concern with this car is FPG: fun per gallon.

My 4cyl 02 s10 pickup gets about 29mpg, and its the slowest pos i've ever driven but I'm never in a rush while going surfing or commuting to work...

 

My personal best was 30.4 mpg mostly highway.

Personal worst was 20.6 mostly city with lots of VTEC.