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Thread: Truth about Synthetic oil vs petroleum (mineral/ Semi Sythetic) oil

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    uberstore
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    Default Truth about Synthetic oil vs petroleum (mineral/ Semi Sythetic) oil



    One question that invariably arises when deciding on which oil to use in your motorcycle is whether to use synthetic oil or petroleum oil. Although the answer lies in what your expectations are for your motorcycle, here are a few issues you should consider when making your choice:

    HIGH TEMPERATURE PERFORMANCE
    I believe this is generally a well known fact, but synthetic oils will, in general, perform much better in high temperature applications than petroleum oils will.

    The synthetic basestocks that synthetic oils are manufactured from have much higher flash points than petroleum oils typically do.

    In layman's terms, the flash point of an oil is the point at which it begins to
    vaporize. The higher this flash point, the better the oil will hold up in high temperature environments.
    In addition, because synthetic oils are made up of particles of uniform size, they have less "internal friction" than petroleum oils (which are made up of particles varying greatly in size). This lowers the temperature of the oil, thus improving the cooling qualities of the oil. Of course, the end result is cooler engine temperatures.

    Secondarily, synthetic oils do not cause the "blanket effect" that petroleum oils do. Because petroleum oils are made up of particles of varying sizes, the smaller particles tend to flow freely through the center of the oil galleries within your engine while the larger sized particles will be pushed to the "outside" of the oil stream - next to engine components. These large particles, for the most part, remain there and do not distribute heat from engine components back to the oil.
    The uniform particles within a synthetic oil will all flow just as easily through oil galleries. Larger particles are not present to "blanket" engine component surfaces. Therefore, heat is distributed into the oil and carried away.
    The end result is that a good quality synthetic oil can lower engine temperatures by as much as 20 to 50 degrees F. That can significantly extend the life of critical engine components. In addition, less stress is put on the oil, which extends its useful life as well.
    SYNTHETIC VS. PETROLEUM OIL
    Of course, the harder you run your bike, the more important these issues will be. Leisure riders will not have as much problem with this issue, but the issue does still exist.


    More to come, watch this space
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    hey is it better to use fully syn or semi syn EO for 2B bikes like wave/spark?becoz some ppl hav different opinion about EO..so im abit confused.. btween fully and semi,which can go much longer b4 changing to new ones.. and which grade is good?thanx!

     

     
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    Quote Originally Posted by sparky135 dude View Post
    hey is it better to use fully syn or semi syn EO for 2B bikes like wave/spark?becoz some ppl hav different opinion about EO..so im abit confused.. btween fully and semi,which can go much longer b4 changing to new ones.. and which grade is good?thanx!
    I hope this article will help you made a more inform choice which oil to use for your investment.
    Amsoil Oil 10W40 for sale...drop me a line

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    SLUDGE AND DEPOSIT FORMATION
    Petroleum oils are very prone to leaving behind sludge, varnish and other deposits while synthetics are not.

    You see, petroleum basestocks contain many impurities right from the factory. This is because they are a refined product. The refining process is designed to take out impurities. However, no refining process is 100%, and to achieve a level even close to that for a petroleum oil is a very expensive process.

    Therefore, to keep petroleum oil prices down, motor oil manufacturers have to find a "happy medium" between high cost and high impurity levels. The end result is a "fairly clean" petroleum basestock. However, a number of impurities still are present.

    Synthetic oils do not have this problem with impurities. The only thing in a synthetic oil is what the chemists put into the oil blend - and they don't add anything unless it improves the quality of engine protection and performance offered by the oil.

    As motor oil burns off, any impurities within the oil are left behind to cling to engine component surfaces. Since petroleum oils are more prone to high temperature degradation than synthetic oils are AND contain higher levels of contamination in the first place, they leave behind much higher levels of engine deposits.
    This is especially true within an air cooled engine which runs at higher temperatures than a water cooled engine because a petroleum oil is more apt to burn off under these temperature extremes.

    As a result, expect higher levels of deposit formation within a motorcycle application than with an automotive application if using a petroleum oil.
    Obviously, the effect of having higher levels of deposit formation within your engine is seen in multiple areas. First, performance will obviously be decreased. Top end speeds will decline. Your bike won't get the same "jump" out of the starting blocks that it once did. I think you get the picture.

    A second and related area of concern is fuel mileage. If you gum up the works, your mileage will decrease - without a doubt. Of course, this mileage decrease occurs over time, so it is less noticeable. Most people seem to expect a mileage drop over time as just a fact of life. However, it doesn't have to be that way. Synthetic oils will offer you better fuel mileage to begin with AND will maintain that high level of fuel efficiency much longer than a petroleum oil will.

    A third area of concern, if your bike is a wet-clutch application, should be your clutch faces. Any deposit formation on these faces from your motor oil will likely cause clutch slippage to some extent. The more deposit formation, the more slippage that will occur.

    So, since synthetic oils leave fewer deposits than petroleum oils, they are the superior choice if you wish to avoid potential clutch slippage .
    Now you might say, "How would I know if I were experiencing clutch slippage anyway?". Well, to be honest, it's not always easy. If you were experiencing clutch slippage, it is likely that your top end speed would be up to 10 to 20 mph slower than if you were not having any slippage.

    However, the only way to know for certain if you've got clutch slippage due to deposit formation would be to check your top end speed. Then, have your bike in to be serviced, and have them check your clutch faces. If there is no deposit formation, then you know you're not experiencing clutch slippage due to deposit formation. However, you MIGHT be experiencing clutch slippage due to another issue that we'll get to in a little while.

    If there ARE deposits on your clutch faces, have the issue taken care of. Then, check your top end speed again (using the same oil). If your top end speed has increased significantly, then you know that the deposits were likely the problem. At that point I'd be draining the oil and replacing it with a good synthetic that won't leave those deposits.
    Amsoil Oil 10W40 for sale...drop me a line

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    LONGER OIL LIFE
    As much as this issue is debated, most people agree that synthetics hold up better than petroleum oils. In fact, many people even believe that synthetic oils will probably last longer than petroleum oils "in theory".

    However, in practice, very few people actually put this theory to the test.

    They worry about ruining their engines. They are concerned that even if the oil is in good shape it may be carrying too much debris to adequately protect your engine. The fact is that these worries are really unfounded. There is plenty of evidence to indicate that just about any synthetic oil will outlast a petroleum oil by about 2 to 3 times.
    You might want to continue to change your filter at the old 3 to 5,000 mile interval (unless you're using a high efficiency filter designed for extended change intervals), but the oil will still be good for continued use long after 5,000 miles.
    Most any synthetic oil will be good for at least 7500 miles, even in an air cooled motorcycle application.
    Some synthetics will even be good for 10 to 15,000 miles or more.

    In the end, using extended oil drain intervals could save you a great deal of money without sacrificing engine protection. Of course, you have to do what you're comfortable with, but the facts are in.
    Synthetics WILL last longer than petroleum oils, no matter what kind of filtration you're using.
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    Question

    What oil would u recommend for running in a new bike? Synthetic or mineral?

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    .............

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    BEARING SLIPPAGE
    Talk to many motorcycle manufacturers/dealers (especially HD), and you'll find that they might tell you to avoid synthetics in your bike. That trend is slowly changing, but I wouldn't be surprised if you run across someone who tries to tell you that synthetics will ruin your bike.
    Most of them refer to bearing slippage. They say that synthetic oils are "too slippery" to maintain enough friction for bearings to roll as they are supposed to.

    As a result, the say that using synthetic oil will cause your bearings to "slip" instead. Of course, if that were to happen, flat spots would occur on bearings.
    That is a bunch of nonsense. Of all the motorcycle mechanics I've ever spoken with, I've never had one of them say that they've seen any flat spots on bearings in bikes that used synthetic oil. It just doesn't happen.
    Amsoil Oil 10W40 for sale...drop me a line

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    I agree with that.most synthetic oils come with friction modifiers that would actually not cause bearing slippage.That means they are not too uniform in thier moleculer arrangement.These modifiers act as sacrificial protection against premature component wear by coating the surfaces by forces of attraction.

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    wat EO do u recommend for kup doin daily despatch work?

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    As for women, well that is a different story.
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    Quote Originally Posted by alifk69 View Post
    wat EO do u recommend for kup doin daily despatch work?
    Bro, if yours is Air Cool and clock lots and lots of mileage. 20W50 will be your best choice...
    Amsoil Oil 10W40 for sale...drop me a line

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    Do you guys bring in the 10w40 for scooters? If have how do I get it from you?
    rien d'autre que le max.

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