Cleanng gas tanks

[CoolVT@aol.com]

Thank you to those who have responded to my question on tanks. I'm  still not 
sure what I should be shooting for.  Some posts say "clean" the  
tanks...others say "boil" the tanks and some say "strip" the  tanks.
Should the goal be to just clean or to try to remove all of the old  paint 
(coating)?  It seems that if it's the old stuff flaking away that all  of the 
old coating should be removed.  Will boiling or cleaning do that or  should the 
tanks be immersed and stripped?
Thanks, Mark L.