bazza

'Closed circuit' surely works both ways. If you're claiming that it has no way of harming the engine, then surely it also has no way of giving benefit to it either?

I didn't realise from your previous post that this was something you were looking into selling. To be frank, I wouldn't believe it was of benefit until I saw it - and even then I'd be cynical.

Still, there'll always be some mugs willing to buy anything marketed well enough - do you want to be the kind of person who takes advantage of this though?

"Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." - Douglas Adams

I Nomes & Gibbo