Hi thanks for letting me know on the oil
As Peter bell says 20/50 in a pinto -modern oil is just to thin
My neighbour had a fiesta that used to blow blue from the exhaust and burn oil at an alarming rate -it was only a chance chat while he was -in his words filling it with oil again I noticed him using semi synthetic 10/40
He want back to a full mineral oil and all problems went with it