What oil is best? and what ratio?

[John7478]

Local loggers have switched to red armor echo oil 40:1. They were running mostly 461 and switched to 572xp about a year ago. Out of 9 new 572's 2 of them shattered crank bearings not long into operation. Dealer fixed the 2 saws. They started using red armor and really like it. He told me not to use xp oil. Also told me the 572 are lasting about a year under heavy use. Said stihl would last twice as long but he likes that the 572 doesnt beat him up as bad.

No?

 

[Bull Mountains]

View attachment 271471
2nd application of Mink oil
View attachment 271472
2nd application of Obenauf’s including hand rubbed.

Being a Montana resident I am a bit biased, but I use either Montana Blend or for serious alpine hunting boots Kennetrek boot wax.

 

[rogue60]

25:1 Activ mineral oil for the win

 

[RI Chevy]

Is that Castrol the clear stuff?

 

[rogue60]

Is that Castrol the clear stuff?

It's red I personally wouldn't use a clear 2T oil I've got better things to do than scratch my head wondering if I've mixed or not mixed my fuel lol.
In my bigger cc saws at 25:1 Active burns clean mufflers are clean and dry never had to clean a screen no smell or smoke and little to no carbon good ring seal and my saws last decades with no oil related failures.
That's just my experience using it.

 

[RI Chevy]

Thank you sir. Maybe it was the Canadian Castrol 2T that was clear?

 

[Bull Mountains]

Dyed two cycle oils do prevent second guessing wether you added oil or not and gives peace of mind.

 

[cus_deluxe]

Thank you sir. Maybe it was the Canadian Castrol 2T that was clear?

i know the mobil 1 racing 2t i got some of in the past was clear.

 

[Bull Mountains]

i know the mobil 1 racing 2t i got some of in the past was clear.

It was for awhile. Then it was changed to being dyed red.

 

[davidwyby]

@Bull Mountains do you think the oil burning adds power?

 

[FergusonTO35]

I have been running Stihl Ultra at 40:1 for awhile because I got some for free. It doesn't stink for me and the machines seem to run as well with it as anything else. Hmm, maybe I should pull my mufflers and take a look at the pistons? In any event I'm going back to VP when the last few bottles are used.

 

[Bull Mountains]

@Bull Mountains do you think the oil burning adds power?

That depends. Lots of variables.

 

[davidwyby]

Been thinking on this...it is said too much oil displaces gas and makes a saw lean. Or maybe it just burns hotter? Or maybe it restricts the jet too much?

 

[rogue60]

Been thinking on this...it is said too much oil displaces gas and makes a saw lean. Or maybe it just burns hotter? Or maybe it restricts the jet too much?

If you know how to tune a saw none of that is relevant.

 

[huskihl]

Been thinking on this...it is said too much oil displaces gas and makes a saw lean. Or maybe it just burns hotter? Or maybe it restricts the jet too much?

Facebook = bad.

Saw carbs have screws

 

[RI Chevy]

That depends. Lots of variables.

Oh no...‍

 

[junkman]

Been thinking on this...it is said too much oil displaces gas and makes a saw lean. Or maybe it just burns hotter? Or maybe it restricts the jet too much?

Yes

 

[davidwyby]

Ok, I know I could test this, but I imagine it has already been done. Does a richer oil mix run hotter, assuming saw is tuned for it, etc.?

 

[RalphK]

No

 

[junkman]

Ok, I know I could test this, but I imagine it has already been done. Does a richer oil mix run hotter, assuming saw is tuned for it, etc.?

Saw has to run hotter in my opinion to burn more oil ,I have had problems with pistons scuffing with more oil on my saws ,have been at 50 to 1 for several years now and piston is always wet with oil ,even milling, am sure if drilled jets out could tune it for more oil ,but fixed jets have their tuning limits with the 2 screws on the carb.my opinion like I said from saws I run over the years and what works for me.