Chainsaw Repair

I know nothing about this stuff.  I have often wondered about this stuff below too.  Is it basically doing the same things your stuff you posted does?

http://www.baileysonline.com/itemdetail.asp?item=21205&catID=

Start Your Engines! Fuel System Revitalizer.

Forgot to add fuel stabilizer to your tank before storing for the Winter? No worries with this incredible new product. Start Your Engines! is designed to ensure easy starting of outdoor power equipment, smooth rough idling and stalling, and helps remove gum and varnish from the carburetor. Intended for year-round use, it's particularly effective when used at the start of every season and as a mid-year tune-up. Works on all 2 cycle and 4 cycle gasoline engines.

4oz of revitalizer treats 1 gallon.