This is actually a myth. The engine requires way more fuel to start than it does to maintain running, I think the crossover point is around 8 minutes for most vehicles, so shutting the engine off at a stoplight absolutely does not save the environment. If anything it’s actually worse for the environment by a tiny amount.
It’s nothing to do with emissions, it’s to reduce particulates around pedestrians.
This is actually a myth. The engine requires way more fuel to start than it does to maintain running, I think the crossover point is around 8 minutes for most vehicles, so shutting the engine off at a stoplight absolutely does not save the environment. If anything it’s actually worse for the environment by a tiny amount.
It’s nothing to do with emissions, it’s to reduce particulates around pedestrians.
It’s actually around 2-3 seconds worth of idle fuel to start.
8 minutes worth would surely hydro lock the engine.
8 minutes at 50km/h is 6.6km. At 5L/100km, that’s 0.3L.
You realise there is no way even the worst engine ever built uses that much fuel to start?
Not the guy you’re talking to, but this made me think!
I wonder if some 60s american 8 liter engine would actually consume that much. I think it’s possible! Longer startup time, less efficient combustion…