The effort is minimal. I have a stabil bottle that meters in ounces. I filled it with 2 stroke oil. My fuel gauge is fairly accurate for a GM. I have about a 16 gallon tank so if my gauge reads half when I fill I give it two ounces, 1/4 full - 3 ounces. I have been running a 1 ounce of oil to 4 gallons mixture.
The cost is about 2 cents per gallon plus about a minute of time to add it to the tank. So the cost is relatively low.
I gained about 1 mpg during all types of driving. Also have had some reduction of WOT spark knock. If the oil extends the life of my fuel pump then it's worth it right there.
Barring any catastrophic failure I will keep using the oil and keeping track of my results.

