I really think that's depended on how one takes care of engine..
really well taken care one's will do 300k and over..( i have seen it.)
good taken cared ones..about 200k
medium one's; 150k
poorly taken cared one's; 100-120k
really poor one's i've seen go before 60-70km's..( i have seen those too)
well.. most will probably will agree with me..
but i think that's pretty general.. right..guys..??
sometimes you just get a lemon(bad built from the beginning.)
technically off tolerances,poorly assembled..etc..(just luck)
some just don't ever give any trouble at all with 10k miles interval
on oil changes, and with couple of overheatings,.. it keeps going with no trouble..(lucky one's)
so..basically i think it's pretty hard to say. right guy..??