I used to run the synthetic Mobile 2T in my enduro bike. I could go across country and always pick some up at a petrol station. Then for some reason Mobile stopped selling it in Oz, so I started using the synthetic Shell 2T for the same reason.
I decided to continue using the Shell 2T in the chainsaw. I figure it is a good synthetic oil by a major petrol chemical company that is used in various competition and street bikes (thus a high detergent level). Maybe when I finish the last two bottles of the Shell 2T, I will try some of the other more exotic oils, but it is hard to argue with 20 years of success.
Mobil 2T was one of, if not the best 2 cycle oil ever made. No it wasn't an ester synthetic but it was more than enough for the temperatures most 2 cycle engines produces, and it's ad pack was off the chart.
As some of you have found TCW 3 oils burn at different temperatures than oils made for air cooled engines, so it's not a good idea to run TCW3 oils in air cooled engines, to say the least.
Klotz makes awesome oils, with incredible film strength. However Super techniplate, Benoil and Original TechniPlate are best used in race engines running nitro or alcohol. In a normal 2 cycle engines excessive carbon buildup will likely occur. Normal 2 cycle engines simply don't run hot enough to burn the oil correctly.
Ester syn oils are the best of both worlds, unbeatable film strength yet they burn very clean, and with modern additives corrosion is kept to a minimum. One needs to understand castor and plant or fruit based oils like Original TechniPlate and Super techniplate are hygroscopic. They are not recommend as storage lubricants because they can cause rust issues in engines that aren't used every daily.. However most ester oils have proper additives that prevent corrosion even though they are to a less extent hygroscopic. You'll never have any corrosion issues with modern ester based oils like Maxima K2, or Klotz R50 to name a few.
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