661 Oil Test 32:1 vs 40:1 vs 50:1 ?

[KG441c]

Its a property of esters. They are poor storage oils, period. And I have never seen a rust preventative in a pre mix oil.

What does Anti-Oxidation protection against rust and corrosion mean?

 

[Andyshine77]

Its a property of esters. They are poor storage oils, period. And I have never seen a rust preventative in a pre mix oil.

Zinc, Calcium are two of many multi functional additives, that provide corrosion resistance.

Come on man, you don't know what you think you do.

 

[Flatie]

1. 800 off road
2. R50(only in 2nd due to smell)
3. Lucas

Dont forget 710!

 

[Flatie]

I think it's a mistake to throw R50 out. We have far too many positive experiences documented here to deny it.

Too thick to get into all the areas of a saw? I don't understand. The are two crank bearings, two rod bearings, and a cylinder wall. I can't remotely imagine that being an issue.

Glazing? Is that even possible on a NiSi plated cylinder?

With that said, I'm most interested in:
800 2T
R50
H1-R

710
Super M

I have the same list to this! IMO i wouldve gone with 800 but ole walker talking about the metals in it and its not FD rated has made me lean toward 710.
I'm looking forward to pictures to show cleanliness of a 710 piston as there hasnt really been much about said oil.
I do believe motul have some switched on chemists!

 

[Moparmyway]

Dont forget 710!

I have the same list to this! IMO i wouldve gone with 800 but ole walker talking about the metals in it and its not FD rated has made me lean toward 710.
I'm looking forward to pictures to show cleanliness of a 710 piston as there hasnt really been much about said oil.
I do believe motul have some switched on chemists!

Lemme get this straight ..................
You tell me not to forget about an oil, then you ask about it like you never used it

710 is not on the list due to it being real thin like for injection oil systems ......... it could work

 

[KenJax Tree]

Lemme get this straight ..................
You tell me not to forget about an oil, then you ask about it like you never used it

Welcome to AS[emoji1]

 

[blsnelling]

Here is my MM461R with 8 gal. Of sunoco110/87 efree for 98.5 octane @ 32:1 with motul 800t offroad. Its tuned to 14200 and last several tanks was used in 36" wood wot. Exhaust port and piston was wet and oily but the piston top had buildup. The 3rd pic is just wiping the piston top with a rag and WD40. Most of the buildup was soft. Not sure what oil Randy used in it or what Chad used when he dyno it? Last picture is all cleaned and ready to try R50!!View attachment 422060 View attachment 422061View attachment 422062 View attachment 422063View attachment 422064

Looks to me like you've been running quite rich.

 

[Flatie]

Welcome to AS[emoji1]

Im doing a sawtroll!!!

Also RonL made valid points about 710

 

[bwalker]

Zinc, Calcium are two of many multi functional additives, that provide corrosion resistance.

Come on man, you don't know what you think you do.

Zinc provides zero protection from corrosion, Calcium does, but the amounts found in two cycle oil are almost useless as a corrosion inhibitor.
And I would say YOU don't know what you think you do..

 

[bwalker]

Looks to me like you've been running quite rich.

Looks like alot of ash buildup, which is what I would expect..

 

[KenJax Tree]

So whats a good storage oil?

 

[porsche965]

And to think at one time H1R at 32:1 was the be all end all oil.

 

[CR500]

And to think at one time H1R at 32:1 was the be all end all oil.

Then think a good majority of people used to run Stihl orange or silver bottle oil

 

[KG441c]

Looks to me like you've been running quite rich.

Saw has been rejetted and tuned to 14200 and 4 strokes but cleans up as soon as in the wood

 

[KG441c]

Looks to me like you've been running quite rich.

If I tune it much more than 14400 it wont 4 stroke

 

[KG441c]

Looks to me like you've been running quite rich.

I was advised to run the saw between 13800 and 14200 after ported. Ive stayed on the side of 14200 to 14400. Definitely not rich

 

[KG441c]

Looks like alot of ash buildup, which is what I wood expect..

I agree. Its definitely not rich. Maybe on the side of too lean. Cleans up nicely as soon as it starts cutting and stays off 4 stroke while cutting

 

[bwalker]

Muffler is wet with unburnt oil too.

 

[KG441c]

Muffler is wet with unburnt oil too.

Well whatever folks wanna think. Personally I dont like to work with a saw tuned at 14200 and higher but thats what the piston looked like after 8 gals at 32to1 of 800t. No way around it. Like I said before though alil buildup on the crown dont bother me

 

[KG441c]

Well whatever folks wanna think. Personally I dont like to work with a saw tuned at 14200 and higher but thats what the piston looked like after 8 gals at 32to1 of 800t. No way around it. Like I said before though alil buildup on the crown dont bother me

I guess the softer part I wiped away was the ash content and the depoist left that were hard is carbon?