View Single Post
      06-09-2010, 05:19 AM   #2
Jeef Beef
Lord Captain Commander
Jeef Beef's Avatar
Australia
110
Rep
3,093
Posts

Drives: a sleeper
Join Date: Oct 2009
Location: Sydney, Australia

iTrader: (0)

Quote:
Originally Posted by fatjoez View Post
Can someone please, do me a favour, and explain the science/logic behind the 135i burning

39.5L/100KM petrol @ a traffic light/idling
0.0L/100KM petrol @ rolling down a hill with foot off accelerator

much appreciated..
When you're idling, you're moving zero distance while using fuel. That should theoretically give you a consumption of infinite litres per 100km. You are burning fuel but not moving at all. Our consumption metre can only show a maximum of 39.5L.

When you're coasting down a hill in gear, no fuel is injected into the engine. The spinning of the wheels keep the engine running, so you're effectively using no fuel to travel the given distance. Hence, 0L/100km.

Make sense?
__________________

E82 135i M-sport: SGM/6MT/Black
Appreciate 0