Fuel octane and type of 2 - cycle oil

PistolPete96

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I have a 2 cycle lawn boy mower. Deck model #7265 and the engine is a Scamp Lawn Boy engine. It has a carburetor off of my dad's 10301 lawnboy. Really want this one to last without the needle bearings on the crankk going bad. What do octane should I be using? And which oil brand?
 

cpurvis

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Run the lowest octane you can get unless the manufacturer says otherwise.

I have two chainsaws, one mower and one trimmer. Only the trimmer is supposed to have higher octane fuel.

Any good 2-cycle oil will work. Run it at the mfg's recommended ratio, not more.
 

lewb

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87 non ethanol if you can find it or you can use a conditioner to help the issues with alcohol in older equipment, I would just mix at 32 to 1 with basically any 2-stroke oil. A synthetic is not going to build up in the exhaust port and foul the plug that tends to happen with conventional oils.
 

Boobala

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87 non ethanol if you can find it or you can use a conditioner to help the issues with alcohol in older equipment, I would just mix at 32 to 1 with basically any 2-stroke oil. A synthetic is not going to build up in the exhaust port and foul the plug that tends to happen with conventional oils.

I see YOU know your stuff ! Every 2 cycle engine I have screams like a Banshee, and never smokes either, ( my biggest complaint) It does scare the hell out of guys when you say I mix 100 to 1 ratio, ( actually I use 1.4 oz. Opti-2 to a correctly measured Gallon of gas ) a little safety factor (for me) ..:thumbsup:
 

cpurvis

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There is no safety factor in mixing more that the specified amount of oil in two-cycle gas. There is a downside--that extra oil forms carbon inside the engine, from the combustion chamber all the way out the exhaust.

I have yet to see a manufacturer recommend a 100:1 mix but 50:1 is common and works just fine IF that's what the mfg specifies.
 

Boobala

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There is no safety factor in mixing more that the specified amount of oil in two-cycle gas. There is a downside--that extra oil forms carbon inside the engine, from the combustion chamber all the way out the exhaust.

I have yet to see a manufacturer recommend a 100:1 mix but 50:1 is common and works just fine IF that's what the mfg specifies.

I refuse to argue with ignorance, LIKE I SAID .... NEVER a problem , don't knock it till you've tried it !
 

cpurvis

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Ignorance? I recommend that a person do what the book (written by the engineers who designed the engine) says and I'm the ignorant one?
 

PistolPete96

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Thank you all for the advice! I'll give the synthetic oil a try! And I can get 87 octane but it has that ethanol crap in it :( I was wondering if anyone has used Sta-bil before? My uncle uses the red stuff for his boat and I was wondering if the blue stuff would be worth giving a try? Again, I appreciate everyone's advice :smile:
 
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