2 cycle engine oil

[uarelovedbygod]

I went to Walmart to buy 2 cycle engine oil to mix with gas for a chainsaw and weedeater. About $5 a pint. Right next to it was a gallon jug of outboard motor 2 cycle engine oil for $12 a gallon. Is there any reason I can't use the outboard stuff for the weedeater? Just curious....

[flewism]

Don't do it, marine engines are watercool and operate at the lower temperature. It will not protect your saw anywhere near as well as a decent 2 stroke oil that is not marine grade.

[Nimrod]

What Flewism said.

[MattyD]

-Also agree with Flewism. Make absolutely sure that you get 2 stroke oil for AIR COOLED engines.

L8R,
Matt

[Crowbar]

If you read the label on the gallon jug it will tell you that it can be used in chain saws. I use it in my saws. Also read your owners manual,it will tell you if you can use it.

[kycrawler]

i run the walmart gallon jugs of 2 cycle oil in 5 different chain saws at a 32-1 mix i have a sthil 660 and a 460 with big bore kits on them for logging and 1 guy can run 10 gallons of gas a day through them when doing serious cutting that gets way too expensive using the sthil oil

[foxtrapper]

With a weedeater and such, I'm perfectly willing to run the universal 2 stroke oils. Haven't ever had a problem with them doing this.

Now with a 2-stroke that works hard, like a chainsaw, I'm less willing to do so.

[flewism]

Originally Posted by kycrawler

i run the walmart gallon jugs of 2 cycle oil in 5 different chain saws at a 32-1 mix i have a sthil 660 and a 460 with big bore kits on them for logging and 1 guy can run 10 gallons of gas a day through them when doing serious cutting that gets way too expensive using the sthil oil

OK I can see that you running saws at 32-1 that were originally designed to run at 50-1, so we are adding more oil. I'm sure they are tuned to run at that ratio. A marine oil is a TCW3 rating and is not made to do its job in a air cooled engine running at 250° plus. An air cooled 2 stroke engine oil will have an API-TC or a JASO rating on it. If the Walmart 2-stroke marine oil has one of these rating go for it.
I have owned three saws since the early 80's, a Poulan 8500, Poulan pro 525, and an Sthil 032 that were originally designed to run a 32-1 that now run at 50-1 and they run well, without any signs of wear with a quality oil. I also have plenty of modern saws an MS441, a husky 357, and a ported Echo 440 are the ones I use the most. All have the mufflers opened and the limiter caps off the carb and run at 50-1.
I'm just a firewood cutter but I've been cutting a good long time and I've never ran 10 gallons of mix in one day per man that is like 50 tank fulls.

[Madsaw]

On some saw boards this is a very hot dicussed topic. Just as Flewism stated. Outboard oil is not designed to lube the bottum end of a saw porperly at the temp saws run at. If you want to save some money. Buy a container that mixes with 2 1/2 gallons of gas. Measure it down and only mix up a gallon at a time. I love fixing saws for the guys that run 32-1 and the outboard oil. Either they are cooled and need a total rebuild from lean seizing or the spark screen is so plugged you got to burn it clean with a torch. Yes a saw designed to run at 50 that is ran at 32 will lean sieze unless tune proper. When you drop close to a grand on a saw you tend to protect your investment and run what recommended.
Bob

[travis91]

We use the quicksilver brand motor for air cooled engines.. not the marine oil..

There has been talk that the walmart brand is made by quicksilver with the diesel guys that use it 1 oz per gallon in older diesel trucks(pre 2004)