Since 2000 diesels have been generally no fuel on coast,or a least for Cali. Both the F250 & Golf. It returns fuel when it drops below idle rpm, gets Really prissy if it is still in gear And the f250 can command full fuel to override the brakes or any other drag. Other than compression drag, I can't see the point unless you are in stop&go traffic
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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