My policy specifically says that I cannot rent to named pilots. I guess
they consider "renting" to be commercial. However, more specific to the
original poster, he can buy his own fuel and even help out when it
comes time for maintenance. I think the word "renting" set off some
alarms within the newsgroup. However, if you actually talked to the
agent about specifically waht you want to do, I'd be it wouldn't really
be considered "renting".

Also, as a side note, do **not** be mis-lead by talks of "open pilot
clauses". All policies appear to prevent coverage when pilots flying
meet the open pilot requirements but have regular access to the plane.
Open pilot is really just for an occasional once-in-awhile thing. My
agent says that most insurance companies will not consider someone to
be "casual use" if they have their own keys. Going by your friends
house and gettnig the keys each time is probably the only way to be
considered "casual".

-Robert