Which is the right motor oil? - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 63 (permalink) Old 08-31-2016, 11:22 PM Thread Starter
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Which is the right motor oil?

I may have made a mistake when I did a recent oil change on my 2006 C50 with 16K miles. I used the following oil: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Apparently, by the reviews, others have used this specific motor oil for their bikes but that doesn't mean its the right one. Turns out there is also a Royal Purple Max Cycle version such as this one: https://www.amazon.com/Royal-Purple-...EH9FFBDJ1DNPBB

Did I choose the wrong version of their oil? How detrimental was my choice to the operation of my bike?

I feel like shifting has been a bit wonky so I'm wondering if this might be the cause.

Another question is which is the correct weight for my climate? I'm in South Florida so it gets pretty warm most of the time and some info I found on the net recommended 20W50 for my climate. According to the service manual chart it lists a few different weight choices for warmer climates: 20W50, 15W40, 15W50, 10W40.

So what it all boils down to is what should I put in my bike? Is there an alternative brand that's just as good but not so pricey? If I have to change the oil again then so be it, I want whats right even if its money down the drain. I figure I'll have to replace the oil filter as well.

Thx

'06 C50

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Last edited by EL Pistoffo; 08-31-2016 at 11:24 PM.
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post #2 of 63 (permalink) Old 08-31-2016, 11:40 PM
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Oh boy, an oil thread. You have to be careful not to use a friction modifier oil in bikes with wet clutches. Oops. Other than that you can use any motor oil you want. I use 20w 50, regardless of locale.

Naturally motorcycle only oil is the safest way to ensure you dont get friction modifiers. I have never bought a single drop of motorcycle oil, though, and never have had a problem. I used 20w 50 castrol gtx in my Volusia., no probs


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post #3 of 63 (permalink) Old 09-01-2016, 12:03 AM Thread Starter
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Oh boy, an oil thread. You have to be careful not to use a friction modifier oil in bikes with wet clutches. Oops. Other than that you can use any motor oil you want. I use 20w 50, regardless of locale.

Naturally motorcycle only oil is the safest way to ensure you dont get friction modifiers. I have never bought a single drop of motorcycle oil, though, and never have had a problem. I used 20w 50 castrol gtx in my Volusia., no probs


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I'm not trying to start another oil thread but maybe another one was due. LOL

Just trying to verify if I made an incorrect choice with what I now believe is non-motorcycle type motor oil. I don't want to inadvertently introduce additional problems to my bike since clutch lubrication is a factor. There are many oil brands to choose from. I personally like synthetic or conventional as well.

I could just as easily switch to Mobil 1 20W50 V-Twin or Rotella T-6 5w40. In the end its all about Synth vs Conv, Weight, and Additives (Auto vs Moto) IMO.

'06 C50

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post #4 of 63 (permalink) Old 09-01-2016, 12:18 AM
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Quote:
Originally Posted by EL Pistoffo View Post
I may have made a mistake when I did a recent oil change on my 2006 C50 with 16K miles. I used the following oil: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Apparently, by the reviews, others have used this specific motor oil for their bikes but that doesn't mean its the right one. Turns out there is also a Royal Purple Max Cycle version such as this one: https://www.amazon.com/Royal-Purple-...EH9FFBDJ1DNPBB

Did I choose the wrong version of their oil? How detrimental was my choice to the operation of my bike?

I feel like shifting has been a bit wonky so I'm wondering if this might be the cause.

Another question is which is the correct weight for my climate? I'm in South Florida so it gets pretty warm most of the time and some info I found on the net recommended 20W50 for my climate. According to the service manual chart it lists a few different weight choices for warmer climates: 20W50, 15W40, 15W50, 10W40.

So what it all boils down to is what should I put in my bike? Is there an alternative brand that's just as good but not so pricey? If I have to change the oil again then so be it, I want whats right even if its money down the drain. I figure I'll have to replace the oil filter as well.

Thx
I'm suspicious of that oil but if you still have one of the bottles and can post a clear picture of of the labels front and back. The manufacturer and warranty approvals should appear on one of them and also the API labels.

I've looked up the RP website and they don't list that information in an obvious way.

That's a good reason to avoid the product even if people rave about it.

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post #5 of 63 (permalink) Old 09-01-2016, 12:30 AM Thread Starter
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Not looking like the right stuff to me either. Label is pretty vague.

'06 C50

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post #6 of 63 (permalink) Old 09-01-2016, 04:46 AM
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I use lucas semi synthectic 10 w 40 motorcycle oil in my 05 c50 it's designed for wet clutches. I live in Philly and it's good for different climate change. Cheapest place to get it is amazon.

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post #7 of 63 (permalink) Old 09-01-2016, 05:33 AM
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I use Mobil1 15W50. It's very similar and cheaper than Mobil1 20W50 VTwin.

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post #8 of 63 (permalink) Old 09-01-2016, 07:15 AM
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Quote:
Originally Posted by EL Pistoffo View Post
I'm not trying to start another oil thread but maybe another one was due. LOL

Just trying to verify if I made an incorrect choice with what I now believe is non-motorcycle type motor oil. I don't want to inadvertently introduce additional problems to my bike since clutch lubrication is a factor. There are many oil brands to choose from. I personally like synthetic or conventional as well.

I could just as easily switch to Mobil 1 20W50 V-Twin or Rotella T-6 5w40. In the end its all about Synth vs Conv, Weight, and Additives (Auto vs Moto) IMO.


I'll bet the royal purple was not a good choice. By the way, a lot of members use the rotella.


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post #9 of 63 (permalink) Old 09-01-2016, 07:27 AM
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Even though it is NOT the right oil, using it is not going to damage anything in your engine. The zinc and phosphorous package is a little light, compared to other motor oils (Zinc and phosphorous are important anti-wear agents in the oil formulation), but it is more than enough to provide the wear protection you are worried about.

The easiest way to tell if you got the right oil for your bike is to look at the back label. On the API rating shield, a motorcycle specific oil will say JASO MA/MA2, meaning that oil has been tested and found compliant by the API for motorcycle use.

When selecting non-tested or non-motorcycle-specific oils, you have to be careful and do your homework on what the manufacturer used when they blended the oil. Many use friction modifiers in place of high zinc and phosphorous packages, including teflon, molybdenum and a host of other substances to improve lubricity. While in an automotive engine, this reduces friction and improves efficiency, in a motorcycle engine, it will spell doom for your wet clutch. Those friction modifiers will become trapped in the clutch lining and it will start to slip. Once that happens, you have no choice but to replace the clutch.

The other thing to watch out for with non-motorcycle-specific oils is the oil's shear resistance. Because the bike uses a shared bath lubrication system, the transmission gears use the same oil as the crankcase, meaning the oil is subjected to substantially more heat, pressure and shearing forces than it may be intended for.

Did you screw up? Probably not. Would I use it in my bike? No. But that's just me.
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post #10 of 63 (permalink) Old 09-01-2016, 07:32 AM
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Rotella T 15w40 since day one.
65k now.

I would return the RB.
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