G430 Overheating

[dave1]

What on earth are you on about? There is always oil in the autobox with or without the engine running. If the box is in N then the oil will not be circulating/moving as the gears are static and do not need lubricating. Simple answer is that coasting in N for any reason is foolhardy.

[emcclariion]

errrm, being in N with the engine running will be turning the gearbox.

[dave1]

Possibly but it still wont lubricate the gears as the pump is controlled via engine revs which will not be enough to turn the pump at coasting revs.

[messi]

I knew someone who used to coast in a gs300, guess what happened, his gearbox failed and so he sold the car

[messi]

Thinking about it now, he also did it in his sc430 and needed a new gearbox aswell

[emcclariion]

I just had to double check as I thought I was being thick, so I have googled:

http://www.aveoforum.com/forum/f106/coasting-neutral-automatic-transmission-12109/

http://mechanics.stackexchange.com/questions/816/can-coasting-in-neutral-damage-an-automatic-transmission

http://ecomodder.com/forum/showthread.php/any-damage-auto-transmission-when-coasting-neutral-13518.html

Google your self :)

[messi]

So hold on do you guys coast to save fuel? If so and you wanted to save fuel, why buy a big car knowing it's a guzzler and if your that worried about fuel why not lpg it? Unless it's a direct injection which of course you can't lpg but they are good on fuel. Well my mk3 gs300 was really good on fuel

[emcclariion]

NO, i was coasting to cool my engine, when I had a dodgy rad.

just wanted to clear up that coasting in N with a Auto Box does not kill it, i would not recomened doing it as every user manual suggests you are not in contol.