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

[Roll Tide]

As typical you have nothing to add..

If I did it would be incorrect apparently.

 

[bwalker]

When you look at the most demanding two cycle racing sports like shifter karts, Klotz and Belray have almost zero exposure. Motul is pretty well used.
Just an observation.

 

[bwalker]

If I did it would be incorrect apparently.

No doubt about it.

 

[Roll Tide]

No doubt about it.

So then Ill ask whats your thoughts on Stihl ultra

 

[bwalker]

Motul 710 and Mobil1 2t

Both have very high quality base oils. High quality base oils also have high VI.
Honestly, forget about flash point, it gives very little insite into much of anything other than shipping and storage.

 

[bwalker]

So then Ill ask whats your thoughts on Stihl ultra

I can't really say. I used it only a few bottles of it that I got when I bought a MS361.
I will say I have typically liked Husky oil better than Stihl. The old orange bottle Stihl was overpriced crap.

 

[KG441c]

Both have very high quality base oils. High quality base oils also have high VI.
Honestly, forget about flash point, it gives very little insite into much of anything other than shipping and storage.

If looking at specs what do u look at to be important? Vi, v@100, etc?

 

[Ron660]

241 piston. Saw is about a year old and owner said probably close to 200 tanks. Said he bought 4 liters of Belray 10 months ago.

View attachment 418847

H1R?

 

[cuttinties]

Never would have guessed that. Also never seen 404 around here used on a saw. All 3/8 .058

Chain cost the same per drive link (until you get into harvester). It takes fewer drive links per .404 chain than 3/8 thus making it cheaper.

 

[bwalker]

If looking at specs what do u look at to be important? Vi, v@100, etc?

I typically don't look at the specs at all.
An msds can be somewhat useful in determining what's in the oil, or what the diluent is composed of. However lots of times the components aren't toxic so they won't show up.

 

[cuttinties]

I'm still waiting to hear what his qualifications are when it comes to 2 strokes or saws in general.

 

[KenJax Tree]

Still pretty, blue 40:1 Lucas..

My saws like it cause they get thirsty when working, and it's the closest thing to blue raspberry Gatorade they get to drink.

 

[KenJax Tree]

241 piston. Saw is about a year old and owner said probably close to 200 tanks. Said he bought 4 liters of Belray 10 months ago.

View attachment 418847

First the 562xp beat the 262xp in Randy's test and now this with H1-R, how much heartache can AS take in one weekend?[emoji23]

 

[sunfish]

So then Ill ask whats your thoughts on Stihl ultra

I ran a bunch of Stihl Ultra at 40:1 a few years ago and got a lot of carbon build up. Switched to Lucas and all is well. I think Ultra needs to be at 50:1.

 

[CR500]

Just for giggles today I mixed up some R50 to run in the 7900 it was running quite good with H1R

I go to cut on some ash and what do you know?? I left my little screwdriver at the truck. I was at 1-1/8 to 1-1/4 out with H1R and had to lean out the H in order to not have it continuously 4 stroke in the cut. I have a very slight 4 stroke after re-tuning.

I really need a tach lol

 

[mdavlee]

40:1 H1R

 

[WoodChuck'r]

LOL Chuck'r... How ya been, man?

I've been good man - busy as hell, but good. Need to make it down to the midwest again for a GTG. Looks like the ole Wiggz shindig in September might be the one. Should be a rockin' time!


How the heck you been buddeh...??

 

[Andyshine77]

First off. How the hell do they know it.
I know it to he false because I have seen some of the oils in question ran at higher rpms..

Take it for what it is.

Chemist.

P#1... I have tested 20 of the top oil's over the summer in my lab, Viscosity, load pressure under r.p.m., metal to metal friction test, oxygen reactivity test, 4 ball wear test, foam control under heat, carbon build up test, And how refined the oil is.

The R.P.M. Unit (machine) was built with a stainless steel piston that run's up to 16,000 r.p.m's, I add E-10 gas into the port hole and add the oil to a 50-1 mix and run it until the database software on the computer tells me at what r.p.m. the oil break's down, It also tells me the viscosity under load pressure, was there any foam under heat and how much carbon build up under heat. The unit gets to a 116 Fahrenheit. I have noticed that with ethanol the carbon build up is very low with all oils, because ethanol is a strong solvent, cleanser, and drying agent. A good synthetic when using E-10 gas is a must, now with Non-ethanol gas the oils will read about 100 to 150 RPM's higher.

tested: Klotz r-50 Techniplate, This oil is all synthetic, and has very small molecules, And it is a thick oil, Maximum R.P.M. before break down of the oil viscosity and film strength was 15,579, even though the oil broke down, my test unit stayed at 116f, weird, this is the first time my unit did this, pour point tested at -14f, this oil passed my test.

 

[Ron660]

Just for giggles today I mixed up some R50 to run in the 7900 it was running quite good with H1R

I go to[/QUOTE

Just for giggles today I mixed up some R50 to run in the 7900 it was running quite good with H1R

I go to cut on some ash and what do you know?? I left my little screwdriver at the truck. I was at 1-1/8 to 1-1/4 out with H1R and had to lean out the H in order to not have it continuously 4 stroke in the cut. I have a very slight 4 stroke after re-tuning.

I really need a tach lol

R50...thicker oil

 

[blsnelling]

Maybe your not seeing tuning issues because you have a compensating carb?

Seriously? All the Stihl Intellicarb compensates for is a dirty air filter. It has no bearing at all on this discussion.