8 minutes at 50km/h is 6.6km. At 5L/100km, that’s 0.3L.
You realise there is no way even the worse engine ever built uses that much fuel to start?
Comment on Engine auto-off
echodot@feddit.uk 1 week ago
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 about 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 its tiny amount.
It’s nothing to do with emissions, it’s to reduce particulates around pedestrians.
8 minutes at 50km/h is 6.6km. At 5L/100km, that’s 0.3L.
You realise there is no way even the worse 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…
So your engine is idling at 50 km/h how does that work your engine idles at 0 that’s the definition of idle
ShankShill@sh.itjust.works 1 week ago
It’s actually around 2-3 seconds worth of idle fuel to start.
8 minutes worth would surely hydro lock the engine.