I wanted to see how many miles I could squeeze out of my mini (2008 type s, 97000 miles, manual trans), so for the last 13 days I've driven softly, accelerated painfully slow, and kept the Sport more off...it was not easy!

Anyway, my average mpg's run in the 28-31s (based on mileage and actual gas used, not the computer, though I was able to keep the computers average mpg at 35 or higher nearly the entire tank). So, here's what I managed:

I filled up back on 9/25, that tank got me 418.7mi on 13.1g, with an mpg of 31.9. I kept an eye in the fuel gauge as I went:

1. 100
2. 165
3. 205
4. 256
5. 302
6. 337
7. 370
8. 417
9. 436

When I filled up, the 9th 'petal' was still lit and the comp was saying I had another 62 miles left, but I don't like pushing my luck. I put in 12.8 gallons to refill the tank, odometer reading 436 miles, giving me 34mpg.

So it's possible to get 34mpg, but that'll be the last time I drive my type s like a justa!

 

I get about 32 on average and I beat on mine a decent amount. Good to see 34 mpg out of an S though

 

I posted this earlier this year, but am still thrilled with it...I took my 2012 Justa manual across Michigan's Upper Peninsula and back in July. Put the cruise on 60 (speed limit is 55). I made it 634 miles on a tank with about 20 miles left on the computer (filled up in the same gas station in St. Ignace). 49+ mpg and still a fun trip (had some good roads up in the Keewanaw Peninsula.

 

I usually get around 37mpg in my MCS (miles driven/gallon filled) not measured by OBC. If I drive it spiritedly, I'll average 33-34mpg. Have never gone below 33mpg average.

 

I'm wondering why I get 24.0 (according to the computer)? Any idea

 

Lots of factors in play. In general, I get around 35 hiway, 30-31 city in my '12 MCS (with the occasional spirited driving). When I made a cross country trip this past summer, I found gasoline choice can really make a difference. When I was able to fill up with ethenol free gas, mileage would go up another 2-3. Also your speed, anything above 70mph will suck it down. Just like they say, YMMV..

 

Using miles and gas filled, not the computer, I've averaged 26.85 (Road Trip App) since I got the car in July. It is 99% city driving, I've only had it on the highway for less than 100 miles.

 

I took a 1000 mile trip up to Minnesota last month, was hoping I'd get some good mileage on the highway, but doing 85mph average kills the mpgs, averaged around 24-26 the whole way, less than 300 miles on a tank. Pretty comfy ride though, even after 14 hours of sitting.

Maybe there's something wrong with my car though, I simply can't see ever getting above 34mpg after driving so slow this last tank...how some of you guys are getting 35+ is beyond me, and I'm jealous!

Mini4lyf, if the comp is telling you 24, you're probably getting even less than that, as my comps average mpg estimate has always been optimistic. Check your air filter if nothing else, an engine that can't breathe is an engine that has to work harder.

 

"If you're getting great mileage, you're probably not having enough fun!"

 

2008 Justa, 6 speed manual: I make a hundred mile one way trip all freeway on cruise at 80mph fairly often, 40-42mpg everytime. Its 100 miles, off the freeway for my business a block from the ramp, and then the return trip. Measured from the fillups.

 

Ya my Justa has suprised me, I drive mostly highway and I get 40+ burning 89 octane mid grade. But its true, I am not having enough fun, darn work commute.

 

I drive a manual 2011 clubman S. I have found that I can increase the mpg a nice amount without eliminating fun. At least by curbing attention to stupid accelerations and coasting into stops, I can move the mpg from 30.5 to almost 32. In my mind these are small behavior changes without eliminating the fun parts of driving.

 

You must reset your computer every time you start your car up or your version of spirited is 0-60 in 20 seconds. Or you put the pedal to the metal once per fill up and drive Ms. Daisy the rest of the tank.

 

This is pretty much the way I drive. I usually get close to 34 in my manual 2010 Clubman S. It just takes a bit of restraint. I don't really feel the need to push it to the redline to get behind a line of cars barely doing the speed limit.

Also, I'll work through the gears more quickly, shifting around 2K when there is no option for fun. Actually, I kind of like the challenge of seeing how high I can get the mpg.

This brings up a question I have. When I'm heading to a stop, I'll drop it into neutral and take my foot of the clutch pedal. I know that riding the clutch will damage the throwout bearing, or at least that was the wisdom a few decades ago when I first learned a stick. Have things changed on these cars and could I be damaging the clutch the way I'm driving?

 

You are doing it correctly. When I first learned to drive a manual, I would downshift thru the gears to a stop. That's ok when racing, but as my father told me many years ago, "it's a whole lot cheaper to replace brakes than a clutch".

 

...and it gives you something to do in cleaning the layers of brake dust off your rims!

 

I usually get right around 40 mpg in my DD 6 speed justa but that's mostly a freeway commute with the cruise on.

BTW, those aren't "petals" they're "candy corns" !

 

This is my MPG over approximately 50,000 miles:

 

The car is actually quite efficient during acceleration, as long as you recognize that you are storing kinetic energy in addition to traveling down the road. It's when you burn off all that stored energy by using the brakes that your mileage suffers.

 

Best approach is to leave it in the high gear as long as possible when coming to as stop. For example, if you're in 4th and approaching a stop light, get off the gas and start decelerating as early as you can, but leave it in 4th until the revs approach idle, then push the clutch in and select neutral right before coming to a stop, rather than selecting neutral when you first start braking.

Some drivers have a reflexive habit to always push the clutch in when braking.... they feel they don't want to brake "against the engine". There is absolutely nothing wrong with braking while the car is in gear and postponing putting the clutch in and selecting neutral only as you are coming to a stop causes the lowest degree of wear to both clutch and brakes while returning the best fuel mileage.

- Mark

 

Yep, yours is the best approach. The only point I was making is it doesn't make sense to downshift the trans to use as braking power.

 

If I inferred something from your post that wasn't there, my bad. Your point is the important one.... don't downshift through the gears as you're coming to a normal stop as it adds expensive clutch/transmission wear for only a minor decrease in relatively cheap brake wear.

- Mark

 

Before I put in my CAI and got some wider tires, I was getting 45-50mpg on the highway easy. After that (and I believe part of it may just be the fact I love the sound of my CAI) I've been averaging about 32-34 combined, getting about 37-40 highway. But still, can't complain! Better than the 7mpg my Jeep used to get!

 

Wow. Looking at everyone else's numbers, mine MPG's are terrible! I have an 07 MCS. I don't drive highway, mostly city. 16 miles one way to work, doing 45-55 90% of the way with very few stop lights. Still only at 25mpg. I've only had the car for 1 month, and have not once gotten higher than 25mpg. I drive pretty conservatively as well to try to maximize my mpg's. haha. *sadface*

 

@babysarah

My 07 MCS on board computer says 23-24 but my excel spreadsheet says 26-27. The computer is a bit off. I don't know why but it is not accurate at all. We are on the same boat! For some reason, the 07 model is not that that efficient compare to other N14 motors.

My car have a tune + catless dp, maybe thats why.