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View Poll Results: Stay with regular oil or go synthetic?
You don't need no stinkin synthetic! 14 26.42%
Synthetic is the CHIT! 34 64.15%
I really don't know and have no business even answering this poll. 5 9.43%
Voters: 53. You may not vote on this poll

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Old 03-04-2009, 05:48 PM   #21
TexasPsyclone
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A study that was posted on another forum (ZX Forums)

I was looking into running the Royal Purple Max Cycle when I found this information.

http://www.ezlubes.com/product_info/g2156.pdf

This is a pretty thorough study of oil performance. It is based on the following criteria:

1. An oilís ability to meet the required viscosity grade of an application.
2. An oilís ability to maintain a constant viscosity when exposed to changes in temperature.
3. An oilís ability to retain its viscosity during use.
4. An oilís ability to resist shearing forces and maintain its viscosity at elevated temperatures.
5. An oilís zinc content.
6. An oilís ability to minimize general wear.
7. An oilís ability to minimize gear wear.
8. An oilís ability to minimize deterioration when exposed to elevated temperatures.
9. An oilís ability to resist volatilization when exposed to elevated temperatures.
10. An oilís ability to maintain engine cleanliness and control acid corrosion.
11. An oilís ability to resist foaming.
12. An oilís ability to control rust corrosion.

Frankly, I have been a big Royal Purple fan. Many swear by it at the drag strip, and although I'll continue to use it in my cage, I was disappointed in some of the individual test results such as sheer stability, volatility test and wear performance of the RP Max Cycle.

Overall, I think Royal Purple is still a high quality oil, but the test results speak for themselves - for the same money (.25 per ounce) the Amsoil scored higher in most categories, especially the important ones.

Just thought I would share what I had found since I was searching specifically on RP.

On another note - for those who think "oil is oil" - page 3 and 4 are of particular note - showing why motorcycles (particularly high revving models) have specific requirements of their lubrication.

Finally, there has been some discussion as to whether one brand is worth an extra 3 or 4 dollars per quart compared to another. The study put this into good perspective on page 25. Quote - "The results suggest a relationship between the cost of an oil and its level of performance. Generally, higher priced oils tend to perform better, although price alone is not a guarantee of performance. Motul 300V Competition was the most costly oil tested, yet lower priced oils showed better performance. Price must be put into perspective. The cost of oil compared to the cost of a motorcycle is minimal. The cost difference between the average price for motorcycle oils and the most expensive oils is about $10 per oil change. If the performance of an oil can support an extended oil change interval, that cost is reduced. The consumer must consider the performance and benefits offered by an oil and how those benefits affect their motorcycle investment to determine the oilís value."

Although I realize this study was produced by Amsoil, the results seem to be professional and worth some consideration. For what it's worth.
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Old 03-04-2009, 05:54 PM   #22
Rallo
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I used the factory stuff for the first service on mine, then switched to Amsoil on the next oil change. A friend has the same bike as me and has been using the cheapest stuff he can get with no complaints. I stick with Amsoil just because I think the engine may last longer as the miles rack up but idk. I guess time will tell.
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Old 03-04-2009, 05:56 PM   #23
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Not this discussion again? I try to use some common sense: If you plan on keeping your bike your whole life, use synthetic. If not use cheap oil with frequency. Fact is, most people don't keep a bike long enough for synthetic to ever pay for itself.
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Old 03-04-2009, 05:56 PM   #24
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Quote:
Originally Posted by Hooligan View Post
Ill agree with that
alot of racers use rotella t diesel oil from walmart.
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Old 03-04-2009, 06:01 PM   #25
FlipSideUp
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Quote:
Originally Posted by Dobeman View Post
Not this discussion again? I try to use some common sense: If you plan on keeping your bike your whole life, use synthetic. If not use cheap oil with frequency. Fact is, most people don't keep a bike long enough for synthetic to ever pay for itself.
I was about to say the same thing...


Most people go from one bike to another within only a few years.
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Old 03-04-2009, 06:20 PM   #26
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I use synthetic because I'm always riding !!!!!! lol!!!!!!!
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Old 03-04-2009, 06:23 PM   #27
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Quote:
Originally Posted by FlipSideUp View Post
I was about to say the same thing...


Most people go from one bike to another within only a few years.
I would think its not all about time, but miles is the bigger issue.
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