Gasbags !!

[swisstoni]

Has anyone had experience with exhaust jacks? They look quite handy. My entire drive is gravel and my Renault looks to have a stupid jacking point with a body seam running through it, ready to be flattened by a trolley jack.
How long do they stay inflated? Could you return to your car to find it sitting on its brakes? That kind of thing.

[vx220]

I've always been interested in these, but (as usual...) never found out anything about them

Maybe a 4x4 forum, if no joy on here?

[BritishRacinGrin]

swisstoni said:

How long do they stay inflated? Could you return to your car to find it sitting on its brakes? That kind of thing.

This couldn't possibly happen as being a sensible chap you would, of course, support the vehicle with some means other than the lifting device?