Yep, people in the "know" are using an inferior 2 stroke oil. Valvoline's flash point is 172 deg F compared to Maxima 927's 427 deg F. Once an oil hits it flash point it can be ignited and no longer provides lubrication protection. Higher flash point is better because unburn oil is what lubes our engines.
Let's check Valvoline's viscosity: Hmmm, valvoline's viscosity at 100 deg Celcius is 7.4 (lower number is thinner) while Maxima's 927 is 13.27 CSt at same temperature. Seems like Maxima 927 holds up better (no viscosity breakdown) at higher temperatures too!
Valvoline 2 stroke oil SPECS
http://www.valvoline.com/products/2-Stroke Motorcycle Oil.pdf
Vis @ 100 degC (cSt) 7.4
Vis @ 40 deg C (cSt) 48.08
Viscosity Index 116
Spec Gravity @ 60 deg F 0.8635 Density (lbs/gal) 7.20
Total Base No. 3.6
Flash COC ( deg C) 78 <== THIS IS 172 deg Fahrenheit!!!!! POOR
Pour Point (degC) max -39
Sulfated Ash Nil
http://www.maximausa.com/products/2stroke/castor927.asp
Maxima 927 Specs
Color D 1500 Yellow
Gravity °A.P.I. 17.6
Viscosity SUS @ 100°F 617
Viscosity cSt @ 100°C 13.79
Pour Point, °F -5
Flash Point, °F 420
Fire Point, °F 480
Viscosity Index 99
SAE Viscosity 40
Bottom Line: Maxima 927 keeps on lubricating; where other lubricants turn to carbon or vaporize, and provides extra protection on cylinder walls, bearing journals and other critical areas at temperatures much higher than other lubricants.