I am looking to give my ford focus 2010 and bit of extra protection as i do very low miles and most of engine wear occurs when running the engine cold and short stop start journeys.
I have been looking for an oil additive and i have stumbled upon this item, its called the extralube zx1, its slightly different to other oil additives as it doesnt affect or use the oil in any way, it attaches itself to metal parts in the engine and provides extra protection to friction and rubbing (other oil additives change the oil and can make it thicker)
All the reviews i have read so far seem to be really praise this item.
It also claims to make the engine quieter, run more smoothly and increase mpg.
here is a link to the halfords website, though i am sure you could buy it cheaper elswhere.
Finally, would this be ok and a 1.6 petrol engine (duratec)
Personally i cant see it doing any damage to the engine or should i avoid