Here's a bit of research for everybody.

 

time to find some Opti-Lube XPD, best bang for the buck

the #1 additive takes almost 3 QUARTS per tank

I don't see Lubro-Moly on that list (prolly a good thing)

 

For a fuel lubricity additive you can't beat bio-diesel. Something like 3% added volume-volume, increases lubricity of #2 by some 300%.

 

A note for those using TC-W3 two-cycle oil :

The results shown are for a 200-1 mixing ration, instead of the more commonly used 128-1/ounce-per-gallon.

I bet that the two-cycle would gain several places in the results were it tested at the more accepted mix.