Quote:
Originally Posted by roadwarrior_xrs
I found this link recently about coasting in neutral:
popularmechanics.com/cars/alternative-fuel/news/coasting-in-neutral-fuel-economy
It basically says that the engine doesn't use ANY fuel while coasting, confirmed with measurements of the fuel injectors. This seems to contradict a lot of what I read on this site regarding EOC. Thoughts?
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There is no cut and dry answer for when to coast in N vs. in gear. Sometimes it's better in N, other times it's not. The PM article does a disservice by suggesting that there is one right answer; the 3 pages of comments below the article successfully challenge it.
Some variables to consider: are you trying to slow down (or maintain speed in a descent), or are you trying to coast as far as possible (or even accelerate, if descending)? At what engine speed does your particular vehicle enter & exit fuel cut? If your car is automatic, does it even fuel cut at all when the torque converter is NOT locked (and do you know when it is locked)?
(Also, there are a few threads about this already - try the search tool).