What oil is best? and what ratio?

[jk14]

We need diesel chainsaws.

 

[Egg Shooter]

I can’t afford the canned fuel for my usage at work. Those saws get high usage anyway so they aren’t sitting for long with old ethanol fuel. But for some of my saws in my collection I don’t use for work I use the canned fuel. I can run a saw dry on it and have the piece of mind the fuel system stuff won’t go bad as quickly.

Exactly. Even though 90 E-free is everywhere around me, my saws get canned. I don't burn wood or work with a saw. Property clean up and hobby. So they set months some times especially the vintage saws. Canned fuel keeps them happy.

 

[Egg Shooter]

So just to clarify, you only observed carbon build up and removal in the exhaust port? I find the port doesn't get as dirty as a piston crown, and my main concern is the carbon getting to thick. Also, keeping the piston clean may help it stay cooler and trap more heat in the cylinder.

Next I'd like to see a test showing which oils or ratios protect best against overheat damage.

As to your overheat damage idea, I ran the trimmers hot enough under the load I out on them to melt and charr the plastic around the head.

 

[Mastermind]

So just to clarify, you only observed carbon build up and removal in the exhaust port? I find the port doesn't get as dirty as a piston crown, and my main concern is the carbon getting to thick. Also, keeping the piston clean may help it stay cooler and trap more heat in the cylinder.

Next I'd like to see a test showing which oils or ratios protect best against overheat damage.

I’ve come to think of the thin layer of carbon as an insulation of sorts. Heat out of the exhaust port passes over the carbon, and isn’t absorbed into the head as readily.

 

[Egg Shooter]

@Nutball
Expect a PM later.

 

[jakethesnake]

I’m just gonna throw this out there fellas.

ethanol hasn’t been affecting me. I do run 32:1 so perhaps the stabilizers in the oils I run are negating the effects.

only issues I’ve had was with poor quality fuel line. They can’t stand it. Switched to echo lines. Problem solved.

my saws sit. 6 months or so at a time. They all seem to start and run perfectly fine after storage.

my storage solution is run them. Set them on the shelf with however much fuel they had left when I shut them off.

dump old greenish yellow fuel out. Refuel. Pull cord. Start within 10 pulls after long storage?

I don’t really have non e fuel near. Not is canned gas an option when I do have to work with my saws.

maybe it’s the extra oil. Maybe I’m lucky. After years of this. I suppose I just won’t stress over a little corn fuel in my ope.

 

[jakethesnake]

 

[jakethesnake]

Well. 7 pulls. A shutoff. Few more. Tune is still close enough for my liking. I don’t know

 

[jakethesnake]

Maybe I’m lucky. The whole fleet behaves this way though

 

[Egg Shooter]

View attachment 302624 Maybe I’m lucky. The whole fleet behaves this way though

Maybe, in your environment, 6 months isn't enough for phase seperation to occur. I've also read that most fuel stabilizers do not prevent phase seperation. I've had trimmers here that were to be potential test units, that had the crankcase almost eaten through and there was a white ish granulated substance all over the effected areas. There was water and oil present. The fuel had evaporated. No idea on the time frame. Before E-free was available here I used Marine grade Stabil and started everything every 3 months tops year around and kept the tanks full. I never had corrosion but still had ruined fuel lines and carb diaphragms over time. A person's environment should effect how quickly phase seperation occurs.

 

[Flying_Dutchman]

I’ve been using this from Menard’s for $1.50 a bottle.....fight me.
View attachment 298378

I pay about 1/3 that price for citgo air cooled [emoji16]

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[Egg Shooter]

I pay about 1/3 that price for citgo air cooled [emoji16]

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You guys racing to the bottom on price lol.

 

[Flying_Dutchman]

You guys racing to the bottom on price lol.

Hahaha yup!

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[Flying_Dutchman]

I'm sure there are better oils out there, but this oil has served me well. A box of 12 qts. will usually last about 8-12 months. That'll buy a lot of pistons and bearings paying $15 per gallon vs $60

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[Egg Shooter]

Hahaha yup!

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Another MI boy. Nice

 

[Flying_Dutchman]

Another MI boy. Nice

Are you from MI too?

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[Egg Shooter]

I'm sure there are better oils out there, but this oil has served me well. A box of 12 qts. will usually last about 8-12 months. That'll buy a lot of pistons and bearings paying $15 per gallon vs $60

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Man dude. You use a lot of earl

 

[Egg Shooter]

Are you from MI too?

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My profile says nunya....

 

[Egg Shooter]

But i might could be one of these MI dicks too lol.

 

[Flying_Dutchman]

Man dude. You use a lot of earl

Hahaha yup. I cut trees for a living, so it adds up.

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