What oil ratio do YOU run?

[bwalker]

the richer the mix the hotter the saw runs.

Would you care to substantiate that statement?
I run my two cycle engines anywhere form 50- 20:1 depending on applictaion and anticipated load.

 

[460Ted]

Maybe I'm wrong, but with a higher oil to gas ratio, you have less gas by volume. If the jetting was to remain the same, the fuel / air ratio would then be leaner, causing higher combustion chamber temps? Is this correct? I would think that this could be fixed with the H screw.

 

[bwalker]

Maybe I'm wrong, but with a higher oil to gas ratio, you have less gas by volume

This is only relevant to the person who never adjusts his saws. I do it daily when seriously working the saw. Other wise the saw isnt tuned right and not performing up to its potential.

 

[460Ted]

This is why I would like to hear back from cuttinscott about saws running hotter when mixed with more oil. Sounds to me like it's not an issue if the saw is tuned properly.

 

[WoodTick007]

Nice and Smokey

32:1

It adds more 2-stroke smell to your hair and clothes. Forget about the environment......go ahead.....pour in a little more oil!!:

 

[bwalker]

It adds more 2-stroke smell to your hair and clothes.

Not if your saw is runnign right.
The smell on your clothes comes form unburnt gasoline, which isnt effected by mix ratio.

 

[brent denny]

I ran husky and stihl oil at 50:1 for years. Then, after doing a lot of reading on this forum, started using mobil mx2t at 32:1 and 40:1. I ran out of that and my local auto zone no longer carries it (yes, I know it is 2t racing now). The last 6 pack I bought is echo powerblend (synthetic blend). I have been mixing that at 45:1and really like it. My exhaust seems to have less smell now than with any other mix i've used yet. The mx2t has a very distinctive smell that I really like when I first fire up a saw but it gets annoying after a while. I have never ran into a problem with any of these.

 

[Lakeside53]

someone is going to start a war by mentioning Amsoil.... again

 

[skwerl]

Brent, the Echo oil is excellent stuff. I use it when I can't get Stihl black bottle.

 

[Lawn Masters]

I run 32:1, but then again, I also run older saws, like the Macs, and Homelite magnesium monsters. god, this topic again?

 

[cuttinscott]

This is why I would like to hear back from cuttinscott about saws running hotter when mixed with more oil. Sounds to me like it's not an issue if the saw is tuned properly.

The more oil that is added to the gas the more energy the engine uses for combustion. more energy = more heat

SCOTT

 

[bwalker]

The more oil that is added to the gas the more energy the engine uses for combustion.

Complete BS. If it where true one could simply keep adding oil to increase HP.

 

[smcowboy1974]

Racing 2T

I use Mobil racing 2T anywhere from 32-40 to 1 with no problems. No smoke at all hardly after the saw is warmed up. Homelites, Poulan pros, stihls, they all eat it up!

 

[Former Saw Builder]

For what it's worth 40:1 with 89 octane or better gas....

 

[1Alpha1]

42.25:1

 

[Simonizer]

Complete BS. If it where true one could simply keep adding oil to increase HP.

I love these guys, ha ha. At the risk of repeating myself, Ben is right again.

 

[serussell]

This is for lakeside53 Amsoil (now using Saber) rocks 50-1 no probs in 10 years. - wish it had a little fuel stabilizer in it though - like stihl oil.

 

[460Ted]

The more oil that is added to the gas the more energy the engine uses for combustion. more energy = more heat

SCOTT

I would think this might be true if the additional oil was so great that it was causing the combustion to pre detonate, (think bad gas in your car and it starts to ping) however, with sufficient octaine in the fuel this wouldn't be a problem. The other factor concerning heat is friction, which the additional oil does not create.

 

[wagonwheeler]

I tried the 50:1 and flames erupted from the bar and chain so I went back to pure oil...

Or are we talking about FUEL mix???

Chaser

 

[asb151]

40:1….and can we all agree on a several month moratorium on this topic?