Can I use my Motorcycle oil for GX50?

Solux

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Hey guys, I have some motorcycle oil laying around, and was curious if it would be okay to use on these small engines? Thanks.

99703
 
Hey I wanted to ask you something else as well. What octane rating is best or does it matter? I'm willing to get the 91 over 86 if it makes a difference.

Thanks again for all your help.
 
What octane rating is best or does it matter?
I can only get 90 octane at the highest where i live. Zeda 80 specs want me to use 91 octane. after some research of "worthy" octane boosters, i wound up using the Amsoil octane booster which is great since the local Amsoil dealer is also a good friend of mine...It says it boosts octane "up to" 4 points/numbers higher and is meant to treat 15 gallons of gas, (its a 12 ounce bottle),...I just use 1 ounce per gallon and gas/oil/booster mixture just burns really smooth even at idle...for what its worth, the link is here below, but i did notice a difference...I also use their full synthetic oil as well, (1 quart bottle), i use 4 ounces per gallon for 32:1 mix due to high altitude, high heat, conditions where I live in New Mexico...TAKE NOTE though that im using 2 cycle, since this post is for 4 cycle you will want the 4 cycle equivalent oil of what im using...The "booster" is for BOTH 2 cycle and 4 cycle, the oil is not...DAMIEN

 
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The True Difference Between Motorcycle Oil and Automotive Oil

Motorcycle_Oil_vs._Auto_Oil.jpeg
To some people, changing the oil in your car is just like changing the oil in your motorcycle. Just drain out the old oil, install a new oil filter, and pour in the desired amount of new oil and you're done. So when it comes time to change your motorcycle oil, why can't you use the same oil that you use in your car? Motorcycle oil and automotive oil look and feel the same so how could there be a difference between the two?

Automotive oil looks pretty enticing at $3 a quart but any experienced motorcycle rider knows that using automotive oil in motorcycles causes serious damage. In automotive vehicles, the engine is always separate from the clutch and transmission so they have separate oils for each. In automotive engine oil, there is more of what is called "friction modifiers" to help lessen the amount of friction on engine components and improve fuel economy. Of course, improving fuel economy has always been the main goal of the automotive industry; therefore, making friction modifiers a necessity for all automotive oils.

These friction modifiers that are added to automotive oils are what cause serious damages when used in motorcycles. The friction modifiers clog the clutch plates in a motorcycle's transmission causing serious clutch slippage and disabling the motorcycle. Motorcycles have to be as compact as possible and to do this, the engine and transmission have to be combined together into one casing. This means that everything is lubricated by only one type of oil including the valves, piston, transmission, and clutch.

Motorcycles require very little and/or no friction modifiers to help improve clutch friction and to prevent clutch slippage. But to make up for this lack of friction modifiers, motorcycle oils use higher levels of anti-wear additives such as ZDDP, also known as phosphorous, to limit engine friction and wear. Since motorcycle oil has extra anti-wear additives and is lubricating so much more than automotive oil, you can expect to pay anywhere from $9 to $15 a quart.

To some people, both oils look and feel the same but now you know the facts of each. So the next time that you decide to change your motorcycle oil, go straight to your local motorcycle dealer and buy only high quality motorcycle oil designed specifically for the type of motorcycle you own. Make sure that you change your oil periodically to keep it fresh and clean to ensure a long life for your engine, transmission, and clutch.
 
The big issue is that auto oil can destroy a m/c clutch prematurely by 1000's of miles if used, wet clutches.
Yeah I bought this oil from the Honda dealer. It's for my Honda Rebel. Just figured I could use it for my GX50 as well.
 
Hey I wanted to ask you something else as well. What octane rating is best or does it matter? I'm willing to get the 91 over 86 if it makes a difference.

Thanks again for all your help.
91 is for high compression engines but it will burn just fine in your Honda GX 50cc, I doubt it will help performance. Unless you hear a knock and ping from denotation

Octane rating is a measure of how well fuel resists denotation, which is the premature explosion of fuel before the spark is applied.

Knock and Ping - Fuel air mix explodes during compression stroke before spark causing a knock and ping
The knock is the fuel air exploding from compression before spark and the ping is the spark exploding any un burnt fuel

Octane boost is basically just Kerosene. Farmers use it in their tractors and is OK for engines without oxygen sensors It's a lot cheaper than Octane Boost for cars and motorcycles. By adding 1/2 oz of Kerosene to a gal of gas that will raise the octane by 2 points.
Add 1 oz of kerosene per gal ad raise the octane by 4 points and so on.

Basically the Kerosene dilutes the gas giving it a higher octane rating resisting denotation.
 
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