Push to start

[Foxspeed]

How does it save fuel?

warms up faster and as such uses less fuel rather than just sat there running on a rich mixture...slightly less relevent on mordern injection engines

 

[Rogue]

Can't see how that works. You drive off down the road with a cold engine in higher revs, that's going to burn more petrol than sitting there for 2 minutes....surely.

You burn more petrol driving that you do sitting still.

 

[Foxspeed]

Can't see how that works. You drive off down the road with a cold engine in higher revs, that's going to burn more petrol than sitting there for 2 minutes....surely.

You burn more petrol driving that you do sitting still.

engines under load and therefore reaches temperature faster - sat idling it just takes ages to warm up

as for using "more" fuel - its sat idling on a "rich" mixture - when its driving that fuel is put to better use moving the car ie more fuel/more air = more power...etc

its less relevant on modern engines as they do warm up faster but that is sometimes at the cost of getting the cat up to temperature - very much an compromise between emissions and driveability

 

[luke3]

I find 197s take an age to warm up.