I think that used to be true on older cars, but with modern passenger cars emissions/fuel use for start up is about the same as 10s of idle. No clue if that’s true for these big diesel vehicles tho.
Idling diesel is supposed to be very bad but long haul trucks are better at it because they need to keep refrigeration running. Either way, something like 2 minutes of idle is almost universally worse.
I think that used to be true on older cars, but with modern passenger cars emissions/fuel use for start up is about the same as 10s of idle. No clue if that’s true for these big diesel vehicles tho.
Idling diesel is supposed to be very bad but long haul trucks are better at it because they need to keep refrigeration running. Either way, something like 2 minutes of idle is almost universally worse.