Actually Maxima may not carry some of the rating labels because they can't justify the cost of submitting the product to the certification agency for testing. I believe the Petroleum institute wants $75,000 to test a single product for compliance, and that's just to get the "TC" label on the jug. If they even change the dye, they must retest. Nothing yet said about Jaso or ISO label, either. Some of these specialty companies bottle up several varieties for slightly different conditions, and each has their own devoted market, one that is fairly stable and loyal, and knows what they want with or without such labels.
Another angle: some extremely high performance 2-strokes are nearing the 400 hp/liter mark while maintaining some semblance of reliability. These engines operating on the ragged edge of sanity might demand a much better lubricant than our relatively mundane chainsaws down around 1/4 of that rating. The largest number of chainsaws are sold to working men (and a few women) who need a reliable tool, able to perform well without the constant attention of a racing tuner. A few are modified to perform substantially better, but the power gains available to the experienced engine tuner should attest to the idea that the out-of-box saw is a workaday product, with more modest needs.
I have used a lot of Citgo air-cooled oil in my saws, etc, at 32:1 without any trouble. The stuff is always less than $2 a quart at the local farm store, not much more at the gas station. I run it everything from the modern Jonsereds I favor to the old Homie gear drives in my collection.
