does it need to be replaced after removal? i'm polishing a spare cover and the gasket looks like it's in great condition. 
yes i did search, came up with alot of 2200 and 2.4 nonsense 
 
also can't find my haynes manual at the moment. i suppose i should just buy a new gasket and be done with it but meh, figured it was worth asking. 
 
 
ive taken mine off several times, still have original gasket and not a leak to be found