[robchalmers]

from what i've got off my friends in the engine dept of certain auto makers it works out that depending engine age, wear, temoperature, proximity to service, cranking time it can soak up 12sec of fuel at idle in worse case on a 4 banger to restart providing it catches in the first few turns. most modern cars a i think safe margin is 4s@idle. so 4 sec after you've switched off at the lights, a smug grin can start spreading across your face! (as long as the lights are still red!!!! )