Originally Posted by
langer
It would tell you not to jump start the car if you shouldn't do it. There's only a very small majority that ever do any damage and it's normally down to human error. Pushing or bump starting the car is even worse as it can fil the cat with petrol and cause damage to it..
I doubt it would exactly 'fill' it with fuel, I personally would use this method on every modern car, with old cars it's ok but with new cars and the electronics means they are very sensitive to power spikes etc that jump starting represents.
Older cars I would have no problem charging them with the battery still connected, I woulden't even attempt this on a new car, in actual fact the manual etc states not to as well!
Martin