we had a guy who put petrol in one of the connects
it lasted 3 months before things came to a big broken end
depending on what's what, is it one of the hdi engines or the other ones, the older engines don't tend to mind as much but i would have called the boss and coughed up to my mistake, even if it did cost me the price of the fuel and drain and refill, at least he'd have been being honest