In the spirit of jumping in with both feet...I bought the MS engine oil...gas treatment...and the ATF treatment....a while back.
On this page are more specific instructions on how much additive to use....
http://www.altboron.com/tech_data/tech_bulletin.html
I've already used the ATF treatment at 10 oz...while it seems that 7 oz would have been sufficient....at 1 oz / qt. No biggie.
As far as the gas treatment...the bottle says to use 16 oz per 20 gallon tank every 5K miles...which translates into ~ 10 oz / 13.2 gallon tank every 5K miles...but following the PDF it looks like ~ 1.3 oz per 10 gallons is the preferred dose....which I might use since I already have been using Techron Concentrate at 2 oz / 10 gallons. (won't use both) Since I've already used the Techron for a while I'm thinking the smaller dose of MS will be more effective over time.
Engine treatment is much like the ATF...a full bottle a bit too much but OK.