right when i got my 1.25mk 4 fiesta a few month ago the oil was just above the maximum line on the dipstick.

now i checked this morning after doing a total of 1800 miles since owning it and its around 1/4-min mark.

any idea where the oil is going there is no smoke i've noticed ot the exhaust, i cant see any leaks and there is no oil under my car.

so im stumped, took it for a drive round to the petrol station now letting it stand for 30 min and im gonna check it again to see if it has alterd.

also i was going to buy a bottle of oil 5-30 i assume?

but how do i know what oil is in there to start with, and i assume i couldnt just add some 5-30 if thats not what i sin it to start with...