hi, few question i currently have a 1.4 ford focus MK1 2003 and it seems to be not eating oil but not like other cars the same age, ive looked all over cant see leaks and had it up on ramps to see if there any leak none to be found, although i changed the spark plugs and the one that came out of pot 1-2 had oil on them but the 2 that came out 3-4 had none.. am i right in thinking that i have worn pistons or could i have a knackered valve seal?
I do drive it pretty heavy footed as its powerless so needs lots of revs to get anywhere... no problems in driving, drives fine i do 200 mile a week.. Doesn't seem to be burning oil...

im not very good with mechanic but anything thats suggested might help me find the problem as the engine has only 118k miles on it for its age not many


I've put picture up of the spark plugs
any help will be appreciated