Does anyone have any experience of those "Stop Leak"-type additives, the ones you add to the engine oil to prevent oil leaks (funnily enough)?
I have a 1993 Fiat Uno with a relatively minor (approx. 1 pint every
3weeks/750miles) oil leak, seems to be coming from the crankshaft oil seal; I'm not expecting miracles, but would spending a fiver on a tin of oil additive help things, or should just spend the money on "Gunk" driveway cleaner instead...? More importantly, is it likely to do any harm? I use 20W/50 multigrade oil, and am not expecting to keep the car for more than six months anyway.Regards,
Andy