Don't mean to jack the thread, but boltuprite: I have heard from several people that receipts of purchased oil or filters, etc are good enough for warrantee issues if it ever comes up. I usually alternate between saving my receipt from autozone to buying an oil filter from my honda dealer and making sure the computer shows I purchased it, so they have it recorded I purchased the part.

Maybe a honda mechanic can clarify.

William
98 Civic + 03 Pilot