I'm surprised that a product sold as penetrating oil would be the same as framesaver (and I'm thinking of Weigle's product). Framesaver is clearly an oily wax that is made sprayable by a solvent that evaporates, leaving behind the waxy film. This later property seems absent (nor desirable) in most penetrating oils. Now there are some automotive sprays (e.g. the British Waxoyl) that might be very similar to Framesaver...