What oil is best? and what ratio?

[T.Roller]

And Ryan I see them daily scored to hell and back with the same setupView attachment 134520 .

That's a classic straight gassed piston

 

[Keith Gandy]

That's a classic straight gassed piston

Ya

 

[Keith Gandy]

That's a classic straight gassed piston

Point was it was a lack of oil

 

[sawmikaze]

I run 32:1. My saws spew oil out and I love it. Pistons look like the day I got the saw. Imma gonna keep on doing it! All ported. Stihl's of course. [emoji106]

If I said we were the minority that would be an understatement..I go somewhere around 40:1 for the most part

 

[huskyboy]

Nothing wrong with 40:1, it’s what used to be recommended. I use that ratio. It’s more idiot proof than 50:1 imho. 50:1 is because of two things in my eyes. #1 the epa #2 better quality oils nowadays allow leaner ratios.

 

[jakethesnake]

I had a rod bearing go on a 346. Bearing cage let go. Dry inside. Imma use at least 40:1. I was using 40 or 32:1 Them fellas that like to grind on cylinders reccommend more oil. The overseas versions of saws we have here reccommend more oil. Maybe I’ll just use a lil more than the 50:1 is all. I really don’t know the answer to these things. I do think 50:1 would be fine with some of the bike oils and exotics

 

[CR888]

If 50:1 is an EPA mandated rule that OEM's must follow and insist customers follow suit, then why does near EVERY modern saw manual state 25:1 should be used in place of OEM's factory oil? ...

 

[sawmikaze]

I had a rod bearing go on a 346. Bearing cage let go. Dry inside. Imma use at least 40:1. I was using 40 or 32:1 Them fellas that like to grind on cylinders reccommend more oil. The overseas versions of saws we have here reccommend more oil. Maybe I’ll just use a lil more than the 50:1 is all. I really don’t know the answer to these things. I do think 50:1 would be fine with some of the bike oils and exotics

My small saws hate bike oils at more than 50:1..they dont even come close to burning the oil..I always figured if the OPE oils can see a saw out for a long time at 50:1 then an oil like K2 is gonna do an even better job at the same ratio.

 

[jakethesnake]

My small saws hate bike oils at more than 50:1..they dont even come close to burning the oil..I always figured if the OPE oils can see a saw out for a long time at 50:1 then an oil like K2 is gonna do an even better job at the same ratio.

Gotta agree to that

 

[bwalker]

My small saws hate bike oils at more than 50:1..they dont even come close to burning the oil..I always figured if the OPE oils can see a saw out for a long time at 50:1 then an oil like K2 is gonna do an even better job at the same ratio.

Ive never had that issue with bike oils at 32:1 and on occasion heavier.

 

[bwalker]

If 50:1 is an EPA mandated rule that OEM's must follow and insist customers follow suit, then why does near EVERY modern saw manual state 25:1 should be used in place of OEM's factory oil? ...

Got a link to that mandate? Hint, it doesnt exist.

 

[sawmikaze]

Ive never had that issue with bike oiks at 32:1 and on occasion heavier.

You never ran a 201T c-m and picked a tree apart then..

 

[bwalker]

You never ran a 201T c-m and picked a tree apart then..

That would be correct. But the problem isnt the ratio or the oil. Its the poor scavenging characteristics of the saw in concert with the load its under.

 

[Terry Syd]

then why does near EVERY modern saw manual state 25:1 should be used in place of OEM's factory oil?

Probably cause a two-stroke can run on just about any kind of lubricant at 25-1. Besides regular motor oil, I've seen air-cooled motorcycles run on Automatic Transmission Fluid and even motorcycle chain oil. - And a chainsaw puts out far less power than a piped motorcycle, plus the chainsaw has fan cooling.

Recommending 25-1 will cover a chainsaw manufacturer's backside no matter what oil 'happy homeowner' puts in it.

 

[bwalker]

Probably cause a two-stroke can run on just about any kind of lubricant at 25-1. Besides regular motor oil, I've seen air-cooled motorcycles run on Automatic Transmission Fluid and even motorcycle chain oil. - And a chainsaw puts out far less power than a piped motorcycle, plus the chainsaw has fan cooling.

Recommending 25-1 will cover a chainsaw manufacturer's backside no matter what oil 'happy homeowner' puts in it.

Do they even mention 25:1 any more?

I had an old Wajax fire pump that was from the early 60's I believe. It speced 30wt non detergent oil at 16:1.

 

[Terry Syd]

I ran an air-cooled 1983 KDX-200 from the Cape York Peninsula to Cohen (Northern Queensland) flat chat (130-140km p/h - that's 80-87 MPH)) for about 4 hours straight. I felt it should have a bit more oil for the run so I bumped it to 20-1 for the ride. I was running Castrol mineral oil.

 

[bwalker]

FYI I have recently heard that Honda has discontinued all of their two cycle oils.

 

[skippy]

FYI I have recently heard that Honda has discontinued all of their two cycle oils.

If true, that sucks I have been using hp2 and like it alot .

 

[Deets066]

Got a link to that mandate? Hint, it doesnt exist.

In the Stihl manual it recommends Stihl oil at 50:1. If any other brand oil is used then they recommend 25:1.
Hint....

 

[Cat 525]

Would like too know how much of this hole is made in the same place and put in different brand of bottles!