50to1 oil

[Jake Dykstra]

Could 1 tank of Stihl 50 to 1 oil cause a perfectly good running (almost new saw) to seize up?
My saw was running excellent as of this morning. Was doing some big tree work for a company and he said he had a can of stihl premix 93. Damnit I know better than to not bring my own fuel but only had a few trees to buck up. Last Thursday I topped it off with the premix and burned most of a tank. Today I topped it off with the premix again and made about 8 cuts in some 16 inch cedar.
Next I pushed a 50 inch fir over and proceeded to buck it at the stump.
When I started the saw I felt a vibration at idle that was new but went away with a little throttle. Half way through the first cut it died and is locked up solid.
I always run 40 to 1 VP and never had issues.
This saw has about 2 gallons through it so barely broke in.
Could it be the 50 to 1 premix?

 

[Czed]

I really wouldn't think even stihl ultra would damage a saw that fast
But i have heard of the premixed fuel being wildly inaccurate in mix ratio
Even my local Stihl dealer doesn't recommend the premix.

 

[Seachaser]

Was the pre mix unopened?

 

[Jake Dykstra]

Was the pre mix unopened?

Yeah. Far as I could tell

 

[nbbt]

With some of the recent canned fuels I've used (not Stihl) claiming to be 40-1 some seem to be very light on the oil.
I'm now shaking the cans well b4 opening pouring some into a clear glass container to see if there is any tint in the mix. Some cans have a defernite red tint and some are almost clear. Those clearer ones (and tinted ones) are getting a good dose of oil, just to be safe.

I'm not trusting any of it for oil content anymore.

 

[ammoaddict]

With some of the recent canned fuels I've used (not Stihl) claiming to be 40-1 some seem to be very light on the oil.
I'm now shaking the cans well b4 opening pouring some into a clear glass container to see if there is any tint in the mix. Some cans have a defernite red tint and some are almost clear. Those clearer ones (and tinted ones) are getting a good dose of oil, just to be safe.

I'm not trusting any of it for oil content anymore.

I've heard several people say they thought the mix was off. I got scared of it and don't buy it anymore. I buy the 4 cycle fuel and mix my own oil.

 

[Maintenance Chief]

Could 1 tank of Stihl 50 to 1 oil cause a perfectly good running (almost new saw) to seize up?
My saw was running excellent as of this morning. Was doing some big tree work for a company and he said he had a can of stihl premix 93. Damnit I know better than to not bring my own fuel but only had a few trees to buck up. Last Thursday I topped it off with the premix and burned most of a tank. Today I topped it off with the premix again and made about 8 cuts in some 16 inch cedar.
Next I pushed a 50 inch fir over and proceeded to buck it at the stump.
When I started the saw I felt a vibration at idle that was new but went away with a little throttle. Half way through the first cut it died and is locked up solid.
I always run 40 to 1 VP and never had issues.
This saw has about 2 gallons through it so barely broke in.
Could it be the 50 to 1 premix?

What saw ?

 

[Ketchup]

Could 1 tank of Stihl 50 to 1 oil cause a perfectly good running (almost new saw) to seize up?
My saw was running excellent as of this morning. Was doing some big tree work for a company and he said he had a can of stihl premix 93. Damnit I know better than to not bring my own fuel but only had a few trees to buck up. Last Thursday I topped it off with the premix and burned most of a tank. Today I topped it off with the premix again and made about 8 cuts in some 16 inch cedar.
Next I pushed a 50 inch fir over and proceeded to buck it at the stump.
When I started the saw I felt a vibration at idle that was new but went away with a little throttle. Half way through the first cut it died and is locked up solid.
I always run 40 to 1 VP and never had issues.
This saw has about 2 gallons through it so barely broke in.
Could it be the 50 to 1 premix?

Could be a lot of things. The first 346 I rebuilt threw a circlip in the first few tanks. You’ll find out when you tear it apart.

 

[Woodwackr]

40:1 for all chainsaws, imo. The 50:1 BS is just the government morons’ way to help end oil.

 

[nbbt]

I've heard several people say they thought the mix was off. I got scared of it and don't buy it anymore. I buy the 4 cycle fuel and mix my own oil.

When the current batch is used up that what I intend to do.

Maybe, just maybe that's why some retailers had it at just over $6 for the 110oz can.

 

[Dustin4185]

When the current batch is used up that what I intend to do.

Maybe, just maybe that's why some retailers had it at just over $6 for the 110oz can.

I’m leaning this way as well. I wonder if some of the labs would be able to test ratio? The last batch of 40:1 TruFuel looked pretty light as well. I buy e free if we are cutting a lot, but for the occasional saw or hedge trimmers, I use canned fuel.

 

[Bill G]

I have never understood the desire for canned fuel. I am sure there is a small amount sold here but no one I have ever known uses it.

 

[Squareground3691]

I have never understood the desire for canned fuel. I am sure there is a small amount sold here but no one I have ever known uses it.

I think it’s more often for the homeowner consumer, who doesn’t want to be bothered with the mixing of 2T oil and gas ,

 

[Bill G]

I think it’s more often for the homeowner consumer, who doesn’t want to be bothered with the mixing of 2T oil and gas ,

I understand that. They are the same folks pushing the battery BS also.

 

[ammoaddict]

I have never understood the desire for canned fuel. I am sure there is a small amount sold here but no one I have ever known uses it.

That's how I felt about it when it first came out. But with a shelf life of 5 years, it's all I use in my polesaw because I only use it once or twice a year, it has sat for 2 years before with the canned fuel in it and it fires right up.

 

[Bill G]

I do not personally use AV gas but I know folks that do and it is suppose to have a pretty long shelf life also. Near all of our stations here sell ethanol free fuel so I do not have to worry about that even though I do use it in my mower. When you go through 20 gallon in a day it is not much of an issue. I do have a gas skidloader that sat with ethanol in it..........not good at all.

 

[Jake Dykstra]

What saw ?

Ported 390xp big bore I put together couple.months ago

 

[Jake Dykstra]

Had a chance to get the top end off this morning. I think plug looks good. Wash is good. No noticeable bearing issues.
I'll clean it up and see if the vibration is still there.

 

[Bill G]

I have only had one 390. I often wonder why Husky made them when they had the staple 395. I wondered the same thing about why Stihl had the 650 also when the 660 was a dynamo.

 

[Squareground3691]

I have only had one 390. I often wonder why Husky made them when they had the staple 395. I wondered the same thing about why Stihl had the 650 also when the 660 was a dynamo.

It was a updated version of the 288xp , in between the 385 and 395 ,