I can easily top that, I've an old VL toilet door thats done 1,600,000 K's on the same donk. I've gone thru 4 heads, but the donk & tranny (auto) are factory original. I bought the thing new, & it hasn't missed a beat since 1986. Thats why i've just bought an r32 gtr, which has just blown the @@##?? clutch.....