Originally Posted by I335
I have to say, I'm not impressed with the mpg figures they're reporting in the article. I've done just about as well w/my 335i on similar-length trips. Around here diesel is more expensive than 93 octane gas. If I had a 335d I don't think I'd be able to recoup the extra cost of the car/fuel for as long as I owned the vehicle.
Add to that the cost of refilling Urea every 15K miles service I think it is. Regardless, you have to fill when you go in for some service. You can add a piggy back like procede to your 335i, get diesel like torque, and tone more horse power, and keep the high revving character for a whole bunch more fun to drive. That is if you are so inclined to tamper with the stock car ofcourse, and not entirely necessary.