Fuel Saving Tips
Many people let diesel engines idle for long periods of time while stopped. The engine uses far more fuel idling than restarting especially on a hot day. On cold days you may need to analyze how long you will be stopped and how much the engine will cool the figure out when to turn the engine off. Most large diesel trucks idle to keep refrigeration units, A/C units and heaters needed for cargo and sleeper units. Most of us with diesel pickups and cars don't have that requirement. So save your fuel and don't idle more than necessary.
posted by mapman on September 12, 2012
this tip works for 90% of voting Fuelly members.