Even Quakerstate or Penzoil?
Well he is kind of going against his own word with that statement. Here is why.
The reason why Klotz Supertechniplate can dirty up an engine is because it is 80% Synthetic and 20% Benol Caster Oil.
Caster Oil is one of the best lubercating and protecting 2 stroke oils out there. The down side to it is that it is also the dirtiest burning oil too.
What kind of oil do you think is in Maxima Caster 927? The same dirty buring caster oil that is in the Supertechniplate.
927 is also a blend of Caster oil and Synthetic oil. I dont see how 927 is a cut above klotz supertechniplate when they both contain caster oil.
Running Supertechniplate wont damage your engine. I have never had stuck piston rings, or excess carbon on the tops of my pistons.
If it is absolutly is going to freak you out run Klotz R50 100% synthetic. I have ran Klotz Benol wich is 100% caster oil with no problems. I sure as heck wouldnt loose any sleep over 80% synthetic 20% benol caster oil.
josh