KG441c
Keith
I see the cuts on thoso files are different? Ones straight and ones on an angle?
661 Oil Test 32:1 vs 40:1 vs 50:1 ?
- Thread starter redbull660
- Start date
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Ron660
Addicted to ArboristSite
It is. They work well but I'm still practicing my angles.
I only cut hardwood and it's mostly red oak (occasional water and willow oak) and hickory.
Trx250r180
Saw polisher
seems like the strait across work good for final grooming ,the angled are more agressive
I get longer life on the straight across. The others I chip the corner on the side to file left hand cutters.
Ron660
Addicted to ArboristSite
The angled file did seem to sharpen my Stihl square chisel faster. My Oregon square chisel chains seem easier to sharpen compared to the Stihl chains. I'm currently using full skip square chisel on my 660 but wanting to try some semi-chisel. Most of the oak wood I cut is green not dry. It's a lot easier to split with my maul too.
Ron660
Addicted to ArboristSite
Most of the Loggers in my neck-of-the-woods use full comp round. It's rare to see a Logger in my area using square chisel......most have never heard of it. They mostly cut softwood like pine and occasionally hardwood. Hardwood prices have recently increased.
Trx250r180
Saw polisher
oregon is much easier to sharpen than stihl ,i am glad i have a grinder ,lol
redbull660
Addicted to ArboristSite
I don't want to hear I told you so, because no one here has posted this in 335 pages.
Anyway...
One reason to run more oil (in many cases), would be to get more additives into the engine.
hypothetical bottle of "xyz" oil (the make up/formulation)
80% oil
10% solvents
10% additives - corrosion inhibitors, anti wear, anti seize, friction reducer, detergents, anti smoke...stuff like that.
----
100%
Say you dump in a typical 4oz of xyz in...
so 3.2oz = oil, .4oz = solvents, .4oz = additives.
4oz - 32:1= 1.00 gal
4oz - 40:1 = 1.25 gal so @ 40:1 you've diluted/stretched your .40z of additives by 25% over 32:1
4oz - 50:1 = 1.56 gal and @ 50:1 you've diluted/stretched your .4oz of additives by 56%. over 32:1
I did say in most cases. Additive packages are all over the map...ie. how much of which and quality of which that make up that typical 10%.
Stihl ultra additives are specific to saws. (saws only?) They say you can run 50:1. So their additive package probably good enough at 50:1.
However, many of these other oils aren't geared towards saws. So running extra oil and thus extra additives (vs stihl ultra) = probably a good thing. Unless you know the make up of the oil and that the additive package is super strong and thus could be run at 50:1. oils that come to mind for that would be ultra, 800, h1r, and maybe amsoil since they shout 100:1 all the time.
I'm not suggesting anything here. I do think I am presenting something that hasn't been presented here before. Personally I'll error on the side of caution as additives are very important.
Anyway...
One reason to run more oil (in many cases), would be to get more additives into the engine.
hypothetical bottle of "xyz" oil (the make up/formulation)
80% oil
10% solvents
10% additives - corrosion inhibitors, anti wear, anti seize, friction reducer, detergents, anti smoke...stuff like that.
----
100%
Say you dump in a typical 4oz of xyz in...
so 3.2oz = oil, .4oz = solvents, .4oz = additives.
4oz - 32:1= 1.00 gal
4oz - 40:1 = 1.25 gal so @ 40:1 you've diluted/stretched your .40z of additives by 25% over 32:1
4oz - 50:1 = 1.56 gal and @ 50:1 you've diluted/stretched your .4oz of additives by 56%. over 32:1
I did say in most cases. Additive packages are all over the map...ie. how much of which and quality of which that make up that typical 10%.
Stihl ultra additives are specific to saws. (saws only?) They say you can run 50:1. So their additive package probably good enough at 50:1.
However, many of these other oils aren't geared towards saws. So running extra oil and thus extra additives (vs stihl ultra) = probably a good thing. Unless you know the make up of the oil and that the additive package is super strong and thus could be run at 50:1. oils that come to mind for that would be ultra, 800, h1r, and maybe amsoil since they shout 100:1 all the time.
I'm not suggesting anything here. I do think I am presenting something that hasn't been presented here before. Personally I'll error on the side of caution as additives are very important.
Two cycle oil typically doesn't have very many additives. Usually a detergent and that's about it in most cases. The anti seizure properties are determined by how much bright or PIB is added or by the molecular weight of the base oil in the case of most ester oils.
OEM oils many times do have a fuel stabilizer in addition to the above.
@redbull660 What are some of these additives and what oils have them?
Oil ratio is mostly dictated by rpms and load, which are what determines oil migration time through a motor.
D
Deleted member 83629
Guest
i would have no fear in running 50:1 in any of this oil covered additive package or dilution be dam***
i ran that mix for years before i entered this forum with out a hiccup.
i ran that mix for years before i entered this forum with out a hiccup.
Jimbo209
ArboristSite Guru
In What ambient temperature, is this discussion/testing
I know I could be cutting from 10-15c just finishing in winter here(6c is a cold morning for me) all the way to 40-45c+ in summer
I know I could be cutting from 10-15c just finishing in winter here(6c is a cold morning for me) all the way to 40-45c+ in summer
I burned a 1.25 gallons of K2 at 40:1 this morning between a OE 365 with a 372 jug and a 201 T c-m.
It changed my life.
I got 64oz for free.
It changed my life.
I got 64oz for free.
Trx250r180
Saw polisher
How did it smell ?
big t double
Addicted to ArboristSite
how do you like the 201tc-m?
Incredible and awesome.
I like it , good throttle response.
