Originally Posted By: BBDartCA
Early 70's Dirt Bike Magazine did a shoort out. Klotz Supertechniplate won. Still available today as are most the oils in this test report. Maxima 927 would be a good second chice.
A few report too much carbon buildup in a saw with SuperTechniplate. (and most of those were modified saws) but others still swear by it.
Much less carbon with Maxima 927, although a mate is switching to K2.
I believe that in the GP bike world Castrol XR77, (and A747 before it) Elf XTX976 and HTX909, Motul 8002T and possibly Silkolene Pro 2 tended to dominate.
The Europeans do know how to blend a good race oil.
I'm a believer in the syn oils in a saw, a saw runs harder and hotter than a whipper snipper and the syn oils burn cleanly and protect well.
A saw doesn't really need the syn/castor mixes (unless it's a race saw) as they just don't see the revs that most racing two strokes see (and I'm not talking about unloaded 'tuning' revs, actual revs in the cut are usually around the 10,000RPM mark for most saws)
As said, ratios have been done to death on here, but FWIW I would never mix any fuel and oil at 100:1, stick to what the manufacturer recommends, but it has been proven time and again that more oil in the mix = more power and longer life.