What oil is best? and what ratio?

[Keith Gandy]

I was also suprised to see the 87 octane minimum rating lowered also

 

[KenJax Tree]

I was also suprised to see the 87 octane minimum rating lowered also

Yeah mine says that too. My 2260 manual says minimum 90 octane.

 

[Keith Gandy]

Yeah mine says that too. My 2260 manual says minimum 90 octane.

Dang they need to decide worldwide??!! Lol!!

 

[KenJax Tree]

Dang they need to decide worldwide??!! Lol!!

Exactly. But the funny part is that the 562 and 2260 have the same motor and 1 requires at least 87 and the other requires 90.

 

[Keith Gandy]

Exactly. But the funny part is that the 562 and 2260 have the same motor and 1 requires at least 87 and the other requires 90.

Not too convincing is it? Im alil puzzled with Autotune and Mtronic saws and how 1 saw will burn the oil differently than the next. Im not so sure thoso saws are the right choice for testing oils vs 1 carb saw tuned the same way with each oil

 

[bwalker]

I have no idea Jake as I have only used silver bottle full synthetic supertech and liked it in ope. It looks from the MSDS to be Citgo distributed. Ill continue to use kl200 in my saws as I have seen no need to change . Seems my new 562xp autotune is rich and alil wet at 40to1 with kl200 compared to my regular carb saws but more time will tell

That's very strange that your wet with a 562. I have ran mine down to 20:1 and it never got wet. In fact I posted pics on the other site of the muffler at 20:1 and it was bone dry and light brown/tan.

 

[bwalker]

here is the back of the bottle.
View attachment 27999

The only oil my Walmart has in the color bottle is the TCW3 stuff. Just looked.

 

[bwalker]

Not too convincing is it? Im alil puzzled with Autotune and Mtronic saws and how 1 saw will burn the oil differently than the next. Im not so sure thoso saws are the right choice for testing oils vs 1 carb saw tuned the same way with each oil

I run premium non E fuel in everything two cycle.

 

[bwalker]

Dang they need to decide worldwide??!! Lol!!

Could be the different rating methods used in different countries. In fact I would bet that's it.

 

[Keith Gandy]

That's very strange that your wet with a 562. I have ran mine down to 20:1 and it never got wet. In fact I posted pics on the other site of the muffler at 20:1 and it was bone dry and light brown/tan.

Im not sure Ben but its not what Im use to seeing with kl200. Could be the saw not broken in? Maybe they program it for so many hours of use before leaning it?

 

[jmssaws]

I always ran 91 until a month or so ago I switched to 87.

 

[Keith Gandy]

I always ran 91 until a month or so ago I switched to 87.

I think 87 makes more power

 

[jmssaws]

I think 87 makes more power

I never could burn 32:1 until I switched to 87.

 

[bwalker]

I think 87 makes more power

No way.

 

[CR888]

One thing I believe effects those insisting on full synthetics and high oil ratios that some folks recommend is that 2T oil blenders in order to get acceptable scuff resistance from synthetics load them up with additives. You change the oil blenders reccomended 50:1 ratio to 32:1, you are now running near double the chemical, detergent and metallic additive into your saw engine. This can definitely have negative effects that are not desirable.

 

[jmssaws]

87 runs hotter than say 93 but I don't know if it makes power,makes heat and usually heat is power.

I guess it would depend on compression and ignition timing and several other variables.

 

[KenJax Tree]

Im not sure Ben but its not what Im use to seeing with kl200. Could be the saw not broken in? Maybe they program it for so many hours of use before leaning it?

I do remember hearing that after so much run time they do lean out and turn a few more RPMs. I never really noticed on mine.

 

[Keith Gandy]

87 runs hotter than say 93 but I don't know if it makes power,makes heat and usually heat is power.

I guess it would depend on compression and ignition timing and several other variables.

Thats my opinion also. I believe the short stroke of a saw with the 87 combusting sooner gives more complete combustion

 

[CR888]

A 2t engine will only benefit from high octane fuel if the engine needs a more chemically stable fuel at higher temps and pressures. If you don't have the compression/spark advance it will rob power simple.

 

[bwalker]

One thing I believe effects those insisting on full synthetics and high oil ratios that some folks recommend is that 2T oil blenders in order to get acceptable scuff resistance from synthetics load them up with additives. You change the oil blenders reccomended 50:1 ratio to 32:1, you are now running near double the chemical, detergent and metallic additive into your saw engine. This can definitely have negative effects that are not desirable.

Only problem with that theory is that synthetics have better scuff resistance so there is no need for high additive treat rates.
It's very hard to find a straight mineral oil now days and I don't know why you would want to.