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

[bwalker]

Times I got

800
6.31
5.95
5.68

Klotz
5.67
5.51
5.47

K2
5.83
5.54
5.64

What does this tell us?

 

[KenJax Tree]

Average times:
800-5.98
Klotz-5.55
K2-5.67

 

[mdavlee]

Interesting. Must have just been putting more load when running K2.

Could have been. I tried to keep it the same pressure but it could have been more load since it was last.

So the K2 sounded the slowest but was faster than 800

The K2 ended up with the highest tach reading also.

 

[CR500]

Just got done running the 7900 with some K2.... Smell was normal. had to do a slight and when mean slight I mean less than 1/8 turn on the high. (was running R50 before)


Honestly we are splitting hairs with times lol.


Mike would you still run k2 after your tests?

 

[mdavlee]

What does this tell us?

Not much besides K2 needed more H than the others. The 800 may be thick like H1R but I really would like to have a bigger stick to test in.

 

[mdavlee]

Just got done running the 7900 with some K2.... Smell was normal. had to do a slight and when mean slight I mean less than 1/8 turn on the high. (was running R50 before)


Honestly we are splitting hairs with times lol.


Mike would you still run k2 after your tests?

Yes.

 

[bwalker]

Not much besides K2 needed more H than the others. The 800 may be thick like H1R but I really would like to have a bigger stick to test in.

Thick had nothing to do with it. The visosity of r50, 800 and h1r is about the same,no?

 

[mdavlee]

Thick had nothing to do with it. The visosity of r50, 800 and h1r is about the same,no?

800 was the thickest when I poured them into the fuel. I had to rinse the container 3 times to get the oil off.

What do you think caused the slight differences in tune?

 

[bwalker]

800 was the thickest when I poured them into the fuel. I had to rinse the container 3 times to get the oil off.

What do you think caused the slight differences in tune?

What order did you run the test in?

 

[mdavlee]

Motul was first since it was what I'd been running the saw on. Klotz and then K2 last. I dumped the fuel each time and run it some before going back to test.

 

[funky sawman]

What's the deal with stihls HP black bottle oil, it has higher jaso cert. Anybody use it? it says semi synthetic

 

[CR500]

Yes.

Going to pull the muffler from the 7900 tonight for giggles. lol

For 20 bucks a liter is worth it it IMO

 

[bwalker]

Motul was first since it was what I'd been running the saw on. Klotz and then K2 last. I dumped the fuel each time and run it some before going back to test.

I suspect that as the test went on the saw became more heat soaked thus the differance in tune.

 

[mdavlee]

Going to pull the muffler from the 7900 tonight for giggles. lol

For 20 bucks a liter is worth it it IMO

At $20 a liter I'll skip it and Motul. Klotz is $11 for a quart.

 

[mdavlee]

I suspect that as the test went on the saw became more heat soaked thus the differance in tune.

Could have. The saw got the leanest with the K2 last. I got it warmed up and then tached them. Went to run the test and then checked it before cutting them off again. It was in a time frame of 30 minutes or so.

 

[KenJax Tree]

Super M is $11 a liter and its 60% K2 and 40% idk

 

[CR500]

At $20 a liter I'll skip it and Motul. Klotz is $11 for a quart.

In NY you don't complain lol.

 

[KenJax Tree]

Ok Mike with the cost aside what would you use.

 

[mdavlee]

Ok Mike with the cost aside what would you use.

I'd still use klotz Kl200 or R50. The cheapest one and I can't see any real downsides to them.

I think I have a 40 fuel can with R50 or Kl200 in it. I may test it tomorrow or the next day and I may mix up some H1R. It's just hard to get time to do this all.

 

[KG441c]

I'd still use klotz Kl200 or R50. The cheapest one and I can't see any real downsides to them.

I think I have a 40 fuel can with R50 or Kl200 in it. I may test it tomorrow or the next day and I may mix up some H1R. It's just hard to get time to do this all.

Appreciate the efforts Mike!