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05-27-2010, 08:10 AM | #67 | |
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Try the same trip at 70mph and I bet you'll see 30mph easy. |
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05-27-2010, 11:51 PM | #68 | |
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I have experimented. If you find the right spot you can actually feel the need for less power as your car is still moving at the same speed. That's where I saw close to 28mpg. Speed was about 65mph, truck limit (car speed limit is 70mph on that road), with nearly no head wind resistance as the semi took care of that. I don't know what you consider huge, but I haven't experienced a huge drop off in mpg between 70mph and 90mph. There is some for sure, but it's not like a 5mpg difference. Now, averaging 120mph does require more HP, and that will result in mpg drop. We can't do that in the US. It would be interesting if some our Autobahn cousins could post their MPG's when doing well over 120mph for long runs. My A4 2.0T would see 30mpg with a manual and AWD. But that engine is 33% smaller with similar power difference. With an ECU tune I picked about 1-2mpg on all around daily driving, but nearly nothing more on highway. I actually find it impressive that I can still get 25mpg while averaging 80mph, and even at 90mph for a long run, the comp still showed 25.5mpg. I don't think our cars are as aero limited as the chunkiness makes it appear to be. Last edited by RPM90; 05-27-2010 at 11:59 PM.. |
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05-28-2010, 12:11 AM | #69 |
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try driving 55mph. Anything over 55-60 is where the mpg falls off, not 70. I drove over 500 miles on one tank in my manual AWD audi 2.0t a4. filled up before i left, drove, filled up when I arrived. Averaged 36mpg. I drove only 55 the whole way because it was 2am, and extreme downpour. I also have APR 93 oct flash
If you want to max out your mileage, try one straight trip, 55mph, highway only, fill up before and after to get exact mileage reading. |
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05-28-2010, 01:17 AM | #70 | |
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On long trips, nearly all highways outside or metro areas are 70mph. Can't do it. If I have to drive below the speed limit or the flow of traffic to get an extra 3-5mpg, I'd rather just get a less powerful car. 25mpg at 80 or 90mph is quite acceptable to me. I didn't buy this car to try and extract the best mpg. I would have gone with the 128i or the new A4. I had the APR 93 as well. Very nice tune. I prefer ECU flashes to all those piggyback and plug in units. |
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05-28-2010, 01:46 AM | #71 |
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I didn't drive 55 ever either. It was in the middle of the night, everyone else was driving slower. I was exercising the quattro. I will miss that when I finally pick up my 135. That was the max I could drive, and still see ahead of me. Typically, I drove between 70-90 and averaged 27-32mpg. And yes, I prefer flashes instead of plug in too.
Is there a bmw equivalent of VAG-COM? I'd like to change some settings on my bmw when it arrives, but I don't know if that's possible. |
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05-29-2010, 01:59 AM | #72 | |
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Seems most say APR will get here first. The most popular for our engines is the JB (Juice Box) products. These are not flashes though, but the cost is lower. For changing settings I think you can get a "BT" scan tool cable that runs software on a PC, and you can access nearly everything. But, I'm going with what I've read as I don't have any tuning items of the BT software, so no direct experience. I'm sure someone will chime in. If not do a search in the engine mods section. |
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05-30-2010, 01:23 PM | #73 |
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MT, Step, DCT, who cares get what works for you not what gives you .2 sec off your 0-60 because most people that drive the car wont be clocking their 0-60 anyway! And no matter how much control you have with the DCT, its not a manual! And I wouldn't even consider getting a sports car with a automatic unless it was a Ferrari or something!
It just trips me out how people try to make the DCT sound like a manual, its not!
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05-30-2010, 02:32 PM | #74 |
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Mines is a 09 but I still got the "year one of the 1" around my push start button and I still got the gifts saying how its the 1st year of the one so Im assuming 08 09 10 models will have the same, but Im just guessing . .
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05-30-2010, 02:42 PM | #76 |
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"We generally prefer the driver involvement of traditional manual transmissions, especially when they’re as good as the ones offered on most BMW models. In the case of the 135i, the fitment of the DCT may close the preference gap for some, and will very likely improve acceleration times."
Coming from people who test lots of cars, this is interesting. |
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05-30-2010, 10:13 PM | #77 |
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05-30-2010, 10:54 PM | #78 | |
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I've said, it shifts like a manual in FEEL. After nearly 30yrs of driving I know the difference. However, if you don't feel the difference between a slushbox auto and a dual clutch trans, then you need more seat time. It trips me out how many don't know the difference. |
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05-31-2010, 12:45 AM | #79 | |
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05-31-2010, 04:31 PM | #80 | |
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06-02-2010, 03:11 PM | #81 |
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If you're averaging 34 mpg at an 80mph cruise with a 6MT 128 make sure you keep it, because yours is apparently the only one ever made that's so fuel efficient
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06-04-2010, 05:28 PM | #82 |
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It doesn't have a torque converter and has gears.. so it should be as efficient as a manual gearbox.
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06-04-2010, 05:35 PM | #83 | |
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06-10-2010, 10:54 AM | #84 | |
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My thoughts exactly. People choose the transmission that fits their needs. In my case, being pretty adept at a manny trans, that would have been my first choice except for a nasty left knee injury which needs some time to permanently heal so I can eventually return to a manny, but in the meantime, I am more than happy with the STEP in my 3T (T-wenty five To T-wo - think clock ). |
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06-10-2010, 11:22 AM | #85 | |
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07-13-2010, 09:54 PM | #86 | |
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07-13-2010, 09:59 PM | #87 | |
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My initial guess would be that they're running a lower final drive ratio on the DCT cars. |
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07-13-2010, 10:32 PM | #88 |
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