Well, after the first cut or 2, you are supposed to change the oil for "break in".. then I did it again after 5x or so.. then once before (or after?) the winter.. and then once awhile ago..
LOL!!
Next thing you know, I will fill it w/ the Mobil 1 0-40W... (okay, not..)
ORIGINAL: Eman77
4 times? Really? Yikes.
I think I've had mine done twice in 10 years. LOL It's on my to-do list by the end of this season (I'll be doing it myself for a change, along with the plug, and sharpening the blade). I mean to do that stuff yearly, but never get around to it....