Quote:
Originally Posted by Hepialid
I have only tended to use this system when I know I am going to be stationary for any more than 15 - 20 seconds. I am aware that restarting even a warm enginer requires a spurt of fuel.
Does anyone know if there is any available information to show what is the minimum stationary (i.e engine off time) needed to cancel out the engine restart fuel consumption?
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From what I've read, in fuel injected cars the "spurt" of fuel at startup is negligible. Someone here calculated (I can't find the post, this was quite a while back) that killing the engine is worthwhile whenever your stop is longer than 2-3 seconds. (The actual number was less than a second, but you should factor in 1-2 seconds for driver reaction and actual startup.)
Often you can kill your engine while coasting towards a red light, before actually stopping - this how
second generation Start-Stop systems work.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
Piwoslaw's Peugeot 307sw modding thread
