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

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
This is all I ever ran in my built Yamaha Banshee. I never once had a piston or lube issue in the 10 years or so I ran it.

http://www.maximausa.com/product/castor-927/

castor927.png
 
Love the smell of ST ,but it's pretty limited in what it's good for. Chainsaws isn't one of the things I would use it for. same goes for 927.

That build up long term causes problems that can increase wear. Especially so in a low stress application like a saw.

I mostly agree, and castor oils can make you sick if you breath too much in.
 
Bought HP2 today. Says directly on the bottle for maximum protection and performance mixed at 32:1. Are oils formulated to work better at certain ratios?
 
That build up long term causes problems that can increase wear. Especially so in a low stress application like a saw.
Bought HP2 today. Says directly on the bottle for maximum protection and performance mixed at 32:1. Are oils formulated to work better at certain ratios?

To an extent yes, but application comes into play as well. With that said 32:1 isn't as much oil as some think, 16:1 in some applications is still common.
 
To an extent yes, but application comes into play as well. With that said 32:1 isn't as much oil as some think, 16:1 in some applications is still common.
I have seen engines ran on 16:1 that were perfectly clean internally and ran with no smoke once warm. They were also engines that expiereance much more heat and load than a saw, not to mention the fact the make way more hp per cc.
 
I have seen engines ran on 16:1 that were perfectly clean internally and ran with no smoke once warm. They were also engines that expiereance much more heat and load than a saw, not to mention the fact the make way more hp per cc.
I am running 25:1 in my 90cc stumpers ............ no smoke there once warm either
 
Even if an oil is faster ,does that factor soot / carbon buildup on the piston and exhaust port for cleanliness ? I am not trying to sell dtp ,but it is the only one i have used that removed the crud left by other oils .
 

Latest posts

Back
Top