Oh right i got you, what you meant to say was
" I have seen a cheap veg oil im thinking of using but it has an anti foaming agent included in it, I was wondering if the anti foaming agent would make any difference to the running of the engine if I put it in me doosel, would anyone have advice or expierience of using such an oil"
Then i might have understood!
But no never heard of anti foamin agent in veg oil, try it and let us know how you get on.
Is it just me or was that a kind of Slobbish reply?