Quote:
Originally Posted by epiphone3
Its important to note that the only reason the automatic provides better fuel economy is because of the two very long over-drive gears. The driveline losses associated with the automatic are still more than the losses associated with a manual.
I believe the economy figures posted are in Normal mode and that ECO-PRO will get you better economy than what is posted.
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This isn't true. The ZF 8HP has a locking torque converter, only 2 shift elements, and a fancy hydraulic control unit. There are other cool technologies including the hydraulic accumulator that makes start - stop possible. This should be plainly evident by the automatic transmission being more efficient in city and highway driving.
Quote:
Originally Posted by Mako
the 335d the US has is very outdated, we need the 300+HP 35D engines that Europe is getting right now. Better MPG than our 35D and much faster.
problem is because the US doesn't use much diesel fuel, our prices are pretty high, sometimes they are lower than petrol (summer I think) but in the winter petrol is usually cheaper like right now. I am pretty sure in Europe Diesel is cheaper than petrol fuel all year... Many of us on bimmerpost would buy these awesome Diesels but the general US population is still in the dark ages with their knowledge on the engines.
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Diesel fuel is expensive in the US because of taxes that are higher than taxes on gasoline. Diesel cars are expensive because of emission requirements.
Quote:
Originally Posted by Saintor
2012 F30 328i 8-speed auto: 24 city / 36 highway.
2012 F30 335i 8-speed auto: 23 city /33 highway.
1mpg difference city - 4% difference. Ugh.
So a detuned N55 6-cyl. @ 240-260HP (20% less power) would probably match the N20.
4-cyl. turbo = BIG fail.  |
And cost more....