zemmo
ArboristSite Operative
50/1? 32/1? ?
Mobil 1 mx2t mix ratio?
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ShoerFast
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just for a number, if you get a little too much smoke at 32 : 1 (4 oz) try 40 : 1 (3.2 oz) to a gallon.
zemmo
ArboristSite Operative
No other opinions on this? No one runs as little as 50/1?
I'm running it at 40:1 in everything, 3.2oz/gallon. Sometimes I do just make it 3oz/gallon.
ShoerFast
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Yes, a lot of people run at 50 : 1 , most without a problem, but a few extra drops of oil is the cheapest insurance there is.
Better a plug, then a jug!
Ive started putting 6ozs to 2 gallons, only because its easier since I have 6oz containers to split a quart into.
Me too!
GitWood
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Ditto.
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Everything.........32/1 !!!
Tzed250
Addicted to ArboristSite
Mee tooo!
32 to 1 in everything
32 to 1 in everything
36-1 for me...About to run out of the stash I bought 2 years ago, so now will head ot AutoZone for the new Racing 2T with the dye added, that will be a bonus.
bcmktg
ArboristSite Operative
MX2T ratio
I am running 40:1 Mobil 1 MX2T in all the older saws that were originally 16:1 and running 50:1 in all the rest that were originally 32:1, 40:1, etc. Right now I am in the process of conducting a seat-of-the-pants test of premium 93-octane gas in the all the saws versus regular 87-octane. All my saws are older, unmodified saws that run at somewhat lower rpms than newer models, so I wouldn't be at all surprised to find the 87-octane performs better overall in them. Even so, I am attempting to keep an unbiased viewpoint until it is all done.
Back during the late 70's, I had a motorcycle mechanic friend of mine explain to me why he had to rejet the carburation on his 2-stroke road racer when he changed oil/gas mix ratio substantially. He said he kept trying to figure out why he would add more oil to the mix and then go out on the track and have the thing seize up and pitch his ass off. He thought more oil = more lubrication = less seizing. Wrong. He actually went so far as to find some technical engineering papers on the subject and learned, much to his surprise, that the more oil you add to the ratio, the LEANER the mixture gets. Why? Simply put, the oil displaces the gasoline within the mixture. Anyway, the moral to the story here is that different oils have not only different viscosities, but different charactertics within the mix. I would think the newer all-synthetic premium oils like Mobil 1, Klotz, the new Stihl premiums, etc., would all have similar mix characteristics due to their similar application, but I am not an engineer, so like was stated earlier in this thread; better safe than ruin a jug.
Al
I am running 40:1 Mobil 1 MX2T in all the older saws that were originally 16:1 and running 50:1 in all the rest that were originally 32:1, 40:1, etc. Right now I am in the process of conducting a seat-of-the-pants test of premium 93-octane gas in the all the saws versus regular 87-octane. All my saws are older, unmodified saws that run at somewhat lower rpms than newer models, so I wouldn't be at all surprised to find the 87-octane performs better overall in them. Even so, I am attempting to keep an unbiased viewpoint until it is all done.
Back during the late 70's, I had a motorcycle mechanic friend of mine explain to me why he had to rejet the carburation on his 2-stroke road racer when he changed oil/gas mix ratio substantially. He said he kept trying to figure out why he would add more oil to the mix and then go out on the track and have the thing seize up and pitch his ass off. He thought more oil = more lubrication = less seizing. Wrong. He actually went so far as to find some technical engineering papers on the subject and learned, much to his surprise, that the more oil you add to the ratio, the LEANER the mixture gets. Why? Simply put, the oil displaces the gasoline within the mixture. Anyway, the moral to the story here is that different oils have not only different viscosities, but different charactertics within the mix. I would think the newer all-synthetic premium oils like Mobil 1, Klotz, the new Stihl premiums, etc., would all have similar mix characteristics due to their similar application, but I am not an engineer, so like was stated earlier in this thread; better safe than ruin a jug.
Al
B_Turner
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I haven't found it locally yet. WHich autozone do you buy it from in Seattle?
oldsaw
"Been There, Milled That"
oldsaw
"Been There, Milled That"
Got it at the local auto parts store. Paid like $8 per quart, but it is a full quart, not paying $6 for 16 or 20oz. It's actually pretty cheap, doesn't smell, and makes virtually no smoke. What's not to like?
Mark
asb151
ArboristSite Guru
Yep, AutoZone....$8.00 quart. Plenty in stock here.
McC
ArboristSite Guru
I've run it in my 5100 since it was new, anywhere from 32-40. Has anyone else noticed the exhaust smells like burning plastic at times?. I have looked my saw over several times, and there is no melted plastic anywhere. Maybe my carb is a little rich, but the plug is brown on one side, light tan on the other.
Scott
Scott
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