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MFL

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Posted: 04/27/19 09:47am Link  |  Quote  |  Print  |  Notify Moderator

I am tired of dealing with mixing gas/oil for two different tools. My Stihl leaf blower uses Stihl 50:1 synthetic oil, and my Weedeater uses 40:1 Weedeater dino oil mixture. I am thinking, just go with the 50:1 Stihl synthetic for both units. I am thinking the 50:1 synthetic, will be sufficient lubrication for the Weedeater. Am I wrong?? What would you do.

Jerry





Dutch_12078

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Posted: 04/27/19 10:15am Link  |  Quote  |  Print  |  Notify Moderator

I kind of split the difference and have used an easy to measure 3 ounces of oil per gallon of gas ratio for both 50:1 and 40:1 tools for years with no problems.


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Posted: 04/27/19 11:52am Link  |  Quote  |  Print  |  Notify Moderator

I use Stihl 2 stroke oil with my 1988 Lawn Boy 2 stroker lawn mower. I use the ratio recommended by Lawn Boy. Yeah I know modern technology, new improved and synthetic 2 stroke oil, etc. But I still use the 1988 ratio determined by Lawn Boy and Stihl 2 stroke synthetic as I can't get Lawn Boy oil anymore. It works well and I only notice a blue cloud on immediate start up, which quickly goes away after the choke is reset.

Decades ago a small engine repair guy told me that a Lawn Boy engine will go forever as long as you make sure you mix the oil and gas at the factory ratio.

After 31 years of hard use..so far...so good.

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Posted: 04/27/19 01:29pm Link  |  Quote  |  Print  |  Notify Moderator

I don’t recall the exact name, Optica or something like that. It is a two cycle oil that claims to run any two cycle engine on the mix recommended on the bottle, one ratio for all 2 cycle engines. When we lived in Northern MN I used it at the same mix for everything from. A 16:1 chain saw to 50: 1 old outboard motors. In several years doing that, never had a problem.

I no longer have any 2 cycle items so no longer use it.


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Posted: 04/27/19 02:05pm Link  |  Quote  |  Print  |  Notify Moderator

georgelesley wrote:

I don’t recall the exact name, Optica or something like that. It is a two cycle oil that claims to run any two cycle engine on the mix recommended on the bottle, one ratio for all 2 cycle engines. When we lived in Northern MN I used it at the same mix for everything from. A 16:1 chain saw to 50: 1 old outboard motors. In several years doing that, never had a problem.

I no longer have any 2 cycle items so no longer use it.


I just remembers I have one bottle left of the stuff I mentioned. It is called Opti-2. The mix is 1.3 oz per gallon. Always worked for me. And it claims to stabilized the fuel for long tern storage as well. My stuff always started right up using it, even my chain saw that did not always get run every year. No, I have no financial interest in the company, just a happy user.

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Posted: 04/27/19 03:28pm Link  |  Quote  |  Print  |  Notify Moderator

You will be fine using the Stihl synthetic oil in the Weedeater at 50:1. Don’t use the weedeater oil at all.

MFL

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Posted: 04/27/19 03:41pm Link  |  Quote  |  Print  |  Notify Moderator

georgelesley wrote:

georgelesley wrote:

I don’t recall the exact name, Optica or something like that. It is a two cycle oil that claims to run any two cycle engine on the mix recommended on the bottle, one ratio for all 2 cycle engines. When we lived in Northern MN I used it at the same mix for everything from. A 16:1 chain saw to 50: 1 old outboard motors. In several years doing that, never had a problem.

I no longer have any 2 cycle items so no longer use it.


I just remembers I have one bottle left of the stuff I mentioned. It is called Opti-2. The mix is 1.3 oz per gallon. Always worked for me. And it claims to stabilized the fuel for long tern storage as well. My stuff always started right up using it, even my chain saw that did not always get run every year. No, I have no financial interest in the company, just a happy user.


My problem is I bought a good supply (2 6-packs) of Stihl HP synthetic due to getting good price, with purchase of leaf blower. That Opti-2 is rated well on Amazon, with many good reviews. But with only a small amount of fuel used, with my weedeater (less than 1/2 gal) I'm hoping to just use the Stihl HP, already mixed, ready to go, if no one posts why I should not. [emoticon]

Thanks for your reply!
Jerry

* This post was edited 04/27/19 03:56pm by MFL *

MFL

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Posted: 04/27/19 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

GeoBoy wrote:

You will be fine using the Stihl synthetic oil in the Weedeater at 50:1. Don’t use the weedeater oil at all.


This is what I wanted to hear! I am out of weedeater oil, hate to go buy more, mix in another can, trying to split the small bottle of oil, to mix with 1/2 gal of gas.

Hearing what I wanted to hear, reminds me of the guy, with the too small truck, waiting for just one person saying it will work, when 20 other posters said it would not.[emoticon][emoticon]

Thanks,
Jerry

Sport45

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Posted: 04/27/19 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

I use Stihl synthetic at 50:1 in all my 2-stroke engines. Even the old chainsaws that were spec’d at 16:1. Just had to adjust the mixtures so they would run right. When you replace oil with gas (or vice-versa) by changing the ratio you need to make sure the engine isn’t left running lean which can quickly burn a hole in a piston. Too rich will foul plugs in a hurry.


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MFL

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Posted: 04/27/19 05:46pm Link  |  Quote  |  Print  |  Notify Moderator

Sport45 wrote:

I use Stihl synthetic at 50:1 in all my 2-stroke engines. Even the old chainsaws that were spec’d at 16:1. Just had to adjust the mixtures so they would run right. When you replace oil with gas (or vice-versa) by changing the ratio you need to make sure the engine isn’t left running lean which can quickly burn a hole in a piston. Too rich will foul plugs in a hurry.


My understanding, by removing a little oil, 50:1 which means more gasoline, less oil in the mix, may cause the Weedeater to run slightly rich, when 40:1 is the spec. With the Stihl oil being high quality synthetic, I'm expecting good lubrication.

Jerry

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