661 Oil Test 32:1 vs 40:1 vs 50:1 ?

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From your own article you linked:

KEY DEFINITIONS Detonation: Detonation is the spontaneous combustion of the end-gas (remaining fuel/air mixture) in the chamber. It always occurs after normal combustion is initiated by the spark plug. The initial combustion at the spark plug is followed by a normal combustion burn. For some reason, likely heat and pressure, the end gas in the chamber spontaneously combusts. The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

The last sentence of that above:

The key point here is that detonation occurs after you have initiated the normal combustion with the spark plug.

That is exactly what DDT is..... And I've been saying DDT.....

Don't tell me what is or what isn't relevant about anything fire, explosion or combustion related be it in a house, engine, pipe bomb or explosive unicorn. Same scientific terms apply to any of them.

Nope didn't say it never happens as a part of another thing aka the DDT.... I've even PM'd you the DDT thing..... You can't have a DDT without a detonation at the end of it or it wouldn't be a DDT.
 
On a oil related note i used my 011 for some slow paced tree trimming today. I was using amsoil saber pro at 32:1, i had a fair bit of smoking. I assume it is because of the lower temps short runtime. Once i got into some longer cuts it cleaned right up with no smoke. I think this oil may do better at 50:1 on the smoking .
 
On a oil related note i used my 011 for some slow paced tree trimming today. I was using amsoil saber pro at 32:1, i had a fair bit of smoking. I assume it is because of the lower temps short runtime. Once i got into some longer cuts it cleaned right up with no smoke. I think this oil may do better at 50:1 on the smoking .

I've tuned the "00" series saws to 50:1 and they are surprising strong for an old saw. Follow the four stroking to the lean edge instead of the OEM spec for maxium results with this oil.

Never a failure even in modern equipment.
 
The question is are you looking for best performance, or what is best for the saw longevity? Personally I am just cutting firewood not in a race contest. I will sacrifice a second or 2 per cut for the longer life of the saw.
 
The question is are you looking for best performance, or what is best for the saw longevity? Personally I am just cutting firewood not in a race contest. I will sacrifice a second or 2 per cut for the longer life of the saw.
Chances are that lost time could be regained with a well sharpened chain.
So ill be mixing for a longer life of saw
 
This saw acts a bit different when tuning for me it goes from burbling right to a lean die out. I always goe from rich to kean then back to a light 4 stroke. It is a great saw i like it. I do think in a slow paced deal like that it needs less oil for sure. I probably will back off on oil for it. My other saws are all fine with the 32-40:1.
 
The question is are you looking for best performance, or what is best for the saw longevity? Personally I am just cutting firewood not in a race contest. I will sacrifice a second or 2 per cut for the longer life of the saw.
Most of the people on this site will never wear out a saw. Or even come close to it.
Any oil that is actually Jaso FD certified oil will provide great service in a saw without a doubt.
 

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