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Welcome to the CleanMPG forums.

Some posts may describe situations which may in some cases be unsafe or illegal in some jurisdictions. Please use common sense and consult your local laws to make sure you do not hurt yourself or others or break any laws.

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# A B C [D] E F G H I J K L M N O P Q R S T U V W X Y Z


D-fas
*VERY dangerous if not done right, possibly illegal*

Draft-Assisted FAS: When approaching a proper point to invoke a FAS, a draft target can be selected to increase the glide distance on the back side of the FAS. You have a speed of 65 mph, a draft target is up ahead doing 57 mph. You invoke FAS and glide into the distance draft, then into the close-in, fall back into the distance, and fall back away into a naked Glide. Pro’s include extending Glide distances significantly thus increasing overall FE (Fuel Economy) if performed properly. Con’s include having to use brakes if you came into the draft target too hot, a close-in draft is dangerous, and the wear issues associated with any FAS (see FAS for details).
Last Updated: 06-14-2007 @ 01:14 AM 

Dfco
Deceleration Fuel Cutoff, a.k.a. fuel cut
Last Updated: 01-04-2008 @ 10:04 AM 

Distant Draft


Pulling into > 1.0 seconds directly behind a semi-tractor trailer rig at speed. Results are OK as there is slightly less wind drag to break as well as being much safer.
Last Updated: 03-03-2007 @ 01:58 PM 

DLI = Driving Like an Idiot
Doing something outrageously stupid (and usually illegal) that endangers the safety of others.
Last Updated: 08-07-2008 @ 02:04 PM 

drafting
The practice of improving fuel economy by closely following a large vehicle as a windblock. Birds have used the V-formation from time memoriable and pilots from the earliest days of aviation...gains of up to 50% can be gained tailgating semis on the highway.

Having said all that, it's both a dangerous and rare practice among hypermilers. It's received a disproportionate amount of publicity in the media.

CLEANMPG DOES NOT ENDORSE DRAFTING!

Please observe the No Zone

Last Updated: 05-16-2008 @ 09:39 PM 

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