Mobil 1 Racing 2T and the earlier version Mobil 1 MX2T. I managed to hoard about 35 quarts & pints, quite a while back, when ExxonMobil discontinued it for about $2 each. Still have about 10 left.
I use it on my 2 cycle string trimmer and Stihl leaf blower. However, for anyone still running a 2 cycle Lawn Boy mower, this stuff is the ticket for eliminating 98% of the smoke and odors, your Lawn Boy puts out using mineral based 2 cycle oil. After all, the stuff was formulated for Grand Prix 2 cycle motorcycles. Using it on OPE is overkill and child's play.
I got some of mine from a couple of ExxonMobil distributors in different states and some at clearance prices at local auto parts stores. I bet, if you called around ExxonMobil distributors in your state of Texas, you could find some still sitting in a warehouse, collecting dust.