Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

The instructions for my current generator, as well as newer ones that I'm researching (B&S engines), all say "NEVER use engine or carburetor cleaner products in the fuel tank or permanent damage may occur".  Why would this be?

I'd planned to switch to SeaFoam instead of Sta-bil based on other threads in this forum.  Usually I put the additive directly in the can when I get back from the gas station.  But now I'm afraid of what would happen if I prep a can with SeaFoam, and then I'm forced to use it in the generator instead of the snowblower. 

Many thanks,
Gary