From the Brison manual I just dug out of a box with a mechanical advance 3.2 in it;

"FUEL: Use high octane gasoline, leaded or unleaded, with a good quality 2 cycle oil. You should only use synthetic oils such as Amsoil or Klotz. The recommended ratios are 64:1 to 100:1 with 64:1 being petroleum based oil and 80/100:1 being the synthetic. Our engines will run at 100:1 with GOOD synthetic oils. Never use more oil than necessary because it will stick the rings, causing the piston to melt, voiding your warranty. Damage caused by fuel additives, such as nitro, are not covered under warranty and the use of these additives will void your warranty." This quoted from a Brison manual included with engine #204.

Now, that being said, I have to also add some notes that I had written on the front of the engine manual from one of the conversations I had with Gary Allison a few years ago. People can believe them or not but I have no need to fabricate since I don't care what anyone does to their engines. Once again, they aren't mine so why should I?

One of Gary's statements that contradicts the manual written much earlier was that he did not like Amsoil for his engines anymore. His statement was "No Amsoil-Ever!". Seems he had some issues with warranty work on 100-1 Amsoil engines.

The next note regards oil. It's noted 50 to 70-1 with a good synthetic. There were 4 oils noted as "good" synthetics; Pennzoil Air Cooled, Mobil 2 stroke, H1R, and Redline 2 Stroke Racing. There must have been some confusion on his part about synthetics because at least one of the noted oils is not a true synthetic.

The manual was written a long time ago and perhaps he never got around to making changes in the print that he was passing along in direct conversation. Nowhere in the written version does it mandate that 100-1 synthetic be used. It does provide the option, but had someone taken the time to talk to the man they would have found that his outlook had changed considerably. This was about the same time period that Greg obtained his engine, around 4 or 5 years ago. But if you want to run 100-1 I'm sure not going to try to stop you. Heck, if you want to run 40 wt. Quaker State cut with bacon grease at 10-1 please be my guest if it pleases you.

At least you got someone to quote the Brison manual for ya