Bimmerfest - BMW Forums - View Single Post - 6MT - Coasting in neutral hurts mpg?
View Single Post
Old 11-29-2012, 03:42 PM
cwinter's Avatar
cwinter cwinter is offline
Here comes trouble!
Location: Dallas, TX
Join Date: Feb 2009
Posts: 8,356
Mein Auto: 2009 328i E90 :)
Originally Posted by SD Z4MR View Post

The DMV considers coasting as "unsafe". Here's an excerpt from a section on the driving test: "As you approach the turn: ...Slow down smoothly, change gears as needed to keep power, but do not coast unsafely. Unsafe coasting occurs when your vehicle is out of gear for more than the length of your vehicle.":

Well, that, technically, makes any shift at speed "unsafe coasting".

The 3-series is 182 in long (E90), which means, that at 60 mph, you would need to change gears within 0.17 seconds to ensure you are not "unsafely coasting" as per the description above.

Now, I get it, this probably refers to slowing down, but even at 35 mph, you would need to shift gears within 0.3 seconds! Downshift, none-the-less! Good luck, boys and girls and I want to hear some nice rev-matched, below 300 milliseconds downshifts on my way home.
2009 328i Sedan - Ordered: 2/24/09 .:. Delivered: 5/6/09
Jet Black | Black Dakota | Aluminum | Premium | Sport | Xenon | CA | Split Fold Seats

Originally Posted by furby076 View Post
You will rue this day, RUE THIS DAY
Reply With Quote