dang i just recalculated my tank with gallons filled up with mileage gone and it still got 20mpg... but i was mainly in the city with one 60 mile freeway cruise.

 

Anyone else tried this? Also, what is reset that could increase gas mileage?

 

This reset sounds like a calibration of the speedometer and the trip computer. Maybe it compares data from the tire pressure since, over time, your tires are getting smaller and changing your final drive ratio? I'm just guessing.

The only way you're really going to find out your mileage is the old fashioned way, by tracking how much gas you buy and how far you drive over several tankfuls. It's also a good idea to check the calibration of your speedometer by measuring several miles along a highway with mile signs (any interstate and lots of others as well).

Let us know what you find out.

 

Actually MPG depends on how you drive...
When I drive like a gramma, means when I control rev at 2200 rpm max, my mpg goes up to 33mpg!
I ususally get 28mpg, though.

 

That's funny, you really think this British manufacture has a computer that compares tire pressure and/or diameter of tires when computing MPG? I know it's just another equation, but REALLY???

 

Man I hope this is a slushbox with a torque converter or a MINI D. Upshifting at 2200?!? Accelerating, even gently, from a say 1500 rpm can't be very good for the motor. One would suspect that ultimately this would result in substantial carbon build up.

 

This is just a guess, and I was wrong once, but I don't think upshifting at 2200 RPM would cause any extra carbon buildup or and other negative effect.

 

You could be right, I too was merely speculating. But looking at a dyno chart of a stock MCS elsewhere on these pages, they didn't even measure in 2200 range let alone 1500. And again this is with a 2200 'redline'. Thats not were the motor would be operating most of the time. There doesn't appear to be a heck of a lot of power down there, although the torque looks good just above that level one of the runs suggests that much below it theres very little to speak of.
https://www.northamericanmotoring.co...ock+dyno+chart

I'll simply relate what others have noted in the Porsche world, and admittedly this anecdotal in nature. 911 engines, particularly the last gen of oiol cooled ones, that have been babied, i.e. that just tool around and are not reved sufficiently high, have wound up with premature wear particularly in the valve train. The engines run too cool and crud builds up in them. This has led to some 911s have a reputation for premature failure of valve guides or worse and requiring top end job$$$. Certainly modern tolerances, the addition of knock sensors, etc. have somewhat eliminated the notion of lugging an engine, at least the computer seems to be able to eliminate the piston slap before we actually can feel or hear it. Nevertheless, Why do this as opposed to running more solidly in the torque band. Sort of negates the reason for owning the car in the first place. If fuel economy is the biggest concern, its probably best just opt for the MC anyway. All that said, I've been wrong way more than just once. Way more. Just my $.02

 

Just guessing, like I said--definitely a long shot. Then again, exactly WHAT is it resetting?

 

It makes sense to operate a vehicle the way it was designed to be operated. Back when the Jaguar XJ12 first came out, it quickly became legendary for falling apart. The joke was that you needed two: one to drive and one to leave in the shop for repairs. But a friend who had raced cars in his youth bought one, and he drove it like a madman--keeping the V12 in its sweet spot and expecting it to perform like a high-end sports car that happened to be a sedan. He put over 200,000 miles on it without any serious problems. Meanwhile, the old ladies who were using them to go to the grocery store and to get their hair done, were paying people to drop American 350 V8s in them after a couple of years.

 

I think the lowest I saw was about 19 and that was being really stupid in the snow, i.e. lots of wheel spin. I can usually get a solid 23 or so for city if I can keep my foot tame.

 

In the snow, not being stupid, and it's -40C/F below, thats been the worst

 

Guess I should let you all know I get 35+mpg most of the time, when comuting.

That drops when I need to punch through drifts for 50 miles, then it drops to the high 20's

 

Hello, I just got my MCS & after 267 miles when I filled up & figured the mileage it had gotten 27.8 mpg. Not bad for a brand new car with a engine that's not broken in. Cold weather too, so I'm guessing it will get better with time. You could say I'm pretty pleased.

Chuck

 

2200 is a fine shift point for the higher gears as the rpm's don't drop that much. I try to keep the revs above 1800 rpm in 4th and 5th; 2k in 6th. 1st and 2nd can be driven in the 1200-1500 rpm range if needed. This is all for economy, of course.

If you think that's bad, in my Honda Insight, a 2200 rpm shift is a bit high . I can cruise all day in 5th gear at 1000-1200 rpm getting 100-125 mpg . It IDLES at 1k rpm. It also has 30 degree offset cylinders that allow this low rpm driving.

 

My car has been at the dealer for over a week and is sporting a pathedic 0mpg.

 

Well yeah plus some electric motors which are torque monsters, right? I, or should I say my tranny program, shifts my F-250 at 2200 on light throttle, but this is a diesel and puts out something on the order of 560 Ft lbs at 2K (although it weighs close to 3.5 tons. Neither of these motors is high output on the order of 100HP+ per liter engine which the MCS is. So presumably there is different design criteria involved and therefore different tradeoffs in usage.

 

I usually get 28 in the city and about 31 on short highway drives...
I'm in a bone stock 2002 MCS...
i think the mileage is pretty damn good..

 

I filled up the 06 MCS at just under 800 total miles. Per the computer, average speed is 24 MPH, and average consumption is 24 MPG. I haven't been watching it closely, but I had to notice that they were the same.

This includes some fairly spirited driving (at under 4500 RPMs!), and mostly city driving as well as a couple of Beltway traffic jams that are worse than city driving. I'm filling it with 93 Octane premium per the manual.

 

Well Our 1500 mile R/t to the Dragon in May, "Merlin" avg 34.6 mpg 1200 miles highway 300 miles Smokey mountain stomping.
R/t to AZ a month ago 4500 miles total avg 34 2 mpg 4000 mile highway, 500 miles city mountain stomping

City Motorin avg 24/26 depending on my mood

 

Typically I'm in long traffic jams on Long Island and with some faster, but brief highway driving, I've found I tend to get between 21-24 mpg with my MCS 6-spd in these conditions. That's at least as good as my last car, and I'm not a pokey driver either, so I won't complain.

 

man, i think the winter fuel is killing me.

Ive been averaging somewhere between 20-21 MPG city highway mix for the past few weeks.

 

Same here! I normally get around 29~31 in my MC, but I've been getting around 25mpg as of late.

 

well, if they didnt make the gas 70% alcohol in the winter.....

 

I know they change the formulations for the seasons... it's just that the minivan I used to drive before the MINI actually got better mileage in the winter (and I never used the A/C, BTW).