Pulse and Glide with the engine running?

[theholycow]

Originally Posted by Geonerd

Brave (and rather rude) talk, but do you have the data to prove it?
If your car has a small engine and tall gears,the penalty for 'keeping the engine running' will not be that great. At the same time, the large benefits of a peak efficiency pulse are well established.

My car doesn't quite meet your specifications (2.5l on a 3000 pound car & short gears -- 3000rpm @ 70mph), but going from P&DFCO to cruise control made my FE jump up. I tried P&DFCO for 4 tanks. See my gaslog for Effram.

P&DFCO was a highly unpleasant way to drive. Even if it saved gas I wouldn't continue doing it.