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Buell XB Forums / Buell XB Forum / Do-It-Yourself Buell Mods / Primary Oil Discussion

Posted:  24 Jul 2008 17:11 [?]  
So I called Royal Purple this morning to find out the final word from them what you want to put in your primary.

They guy recommended Max Cycle 20w50 or XPR. From the website,the Max Cycyle appears to be the best for our tensioners. No pictures of the rest of the primary for reference. However if it protects plastic like that, I would think thats a good sign for the rest of the materials also.

http://www.royalpurple.com/motorcycle-oil.html

He very specificly said to stay away from anything with anti-slip additives or anti-wear additives. Anti-slip is for the diff in a truck, they have wet clutchs in there that are designed to slip. If you get that crap on your clutchs they are also going to slip. The anti-wear will do the same thing. What he's saying is DO NOT USE ENGINE OIL in there, not even (perhaps especially not) anything synthitic. They have the anti-wear additives to maintain the life of your engine.

On a side note, not flame anyone, a lot of people are passing around technical info that may not be qualified to do so. Please everyone, stay in your lane or at least do some serious research and say "this is what I've found" as opposed to "this is how it is". I really like this site and have gotten a lot of info from it. I think the responsible thing to do is to make sure we are putting out quality info instead of what we think we know. For the most part I do believe we are putting out quality info, but the lesser stuff can really lead someone down the wrong road. When you surround bad intel with good intel, it looks that much more credible.

Now please, discuss at will. I am anxious to hear what other people are using and why.
Posted:  24 Jul 2008 17:40 [?]  
I left out that the website says to use Max Cycle 10w30 in the primary and Max Cycle 20w50 in the engine.
Posted:  25 Jul 2008 07:09 [?]  
Thanks for the research Bordsnbikes! I'm going to try some royal purple tomorrow.
Posted:  26 Jul 2008 15:27 [?]  
Anyone want to share? Come on folks.
Posted:  26 Jul 2008 15:47 [?]  
I run the 20w50 in both holes...no problems.
Posted:  26 Jul 2008 15:52 [?]  
i'm a fan of AMSOIL myself, it's faily easy to find test results online to veify that royal purple, moble 1, or amsoil is the best for your buel depending on where you look. but the point is any fully synthetic oil is far better than your standard oil. when i went to synthetic on my dirtbike i noticed it didn't break down (turn dark) between changes which i did every 3 hour's engine time. i i've convinced myself i get 3 to 4 mpg better gas mileage on my buell. as far as extra cost for this type of oil if you do the math it's my opinion that it cost less per mile and you don't have to physically change you oil near as often. im sold on synthetic!
Posted:  26 Jul 2008 16:24 [?]  
I totally agree on synthetics in the engine. It creates a better coating to protect your metal parts that makes them run smoother which equates to better MPGs and longer engine life. What do you put in your primary captain?
Posted:  26 Jul 2008 19:24 [?]  
i use amsoil 20w-50 in my primary and 75w-90 sevear gear on my clutch side.
Posted:  26 Jul 2008 23:36 [?]  
I have 20-50 amsoil in both.
Posted:  30 Jul 2008 09:33 [?]  
So i have been thinking about switching my primary to 20w50 amsoil, i have it in the crankcase....is there any clutch slipping issues with this?
Posted:  30 Jul 2008 12:23 [?]  
I was told from a buddy who races his buell to put amsoil 20w50 in the primary. Which makes me doubt there would be any slipping issues with the clutch.
Posted:  30 Jul 2008 13:11 [?]  
I have amsoil 20w50 in both and am very happy with the clutch, shifting and engine idle.  Very pleased all the way around.
Posted:  30 Jul 2008 13:55 [?]  
Amsoil 20w50 in both...  I'm happy...
Posted:  30 Jul 2008 14:27 [?]  
Quote:
i use amsoil 20w-50 in my primary and 75w-90 sevear gear on my clutch side.


Can you tell me how you do this?  You can only put one kind of oil in the primary area so you can't have 2.  The clutch is built into the primary as is the tranny and it only holds 1 quart of oil.  So please let us know how you are putting oil in 2 different places.  The bike only has 2 kinds of oil.  Primary oil that pumps the tranny and clutch and then the 20w50 that goes in the swing arm for the engine.
Posted:  30 Jul 2008 14:36 [?]  
Quote:
Can you tell me how you do this?


The oils are seperate, one for the engine, one for the clutch.  There are 2 drain bolts.  The one under the swingarm and one near the front left side of the engine.
Posted:  30 Jul 2008 17:16 [?]  
I think the clutch is actually smoother now with the amsoil
Posted:  30 Jul 2008 18:32 [?]  
Quote:
The oils are seperate, one for the engine, one for the clutch.  There are 2 drain bolts.  The one under the swingarm and one near the front left side of the engine.


I know this but if you read his post "i use amsoil 20w-50 in my primary and 75w-90 sevear gear on my clutch side. "  It states he is putting 20w50 and 75w90 in his primary.  That can't happen do you see what I am saying?  I know there are 2 drain plugs one for the primary one for the oil reservoir in the swingarm but you shouldn't be running 75w in your primary.
Posted:  30 Jul 2008 18:42 [?]  
clutch side, would be in reference to where the other drain plug is I imagine...
Posted:  30 Jul 2008 18:54 [?]  
I think he is calling the crankcase oil (swingarm) the primary oil
Posted:  30 Jul 2008 22:51 [?]  
If he is then he is not doing things right.  You shouldn't run 75w in your primary.
Posted:  31 Jul 2008 00:08 [?]  
just got back on the site.......WOW! i cant believe i did this! here's what happened; i've had a couple of sportster's last few year's. and of course cases are seperated, well when it came time for oil change i called my amsoil guy and said i got a buell, he said; whats that, i replied it's got a hot SPORTSTER engine in it, so he replied, here's what you need, got the good's, went home, drained everything, filled my clutch first 1 quart 75w-90, then filled my swingarm with 20w50, didn't think twice about it. i bought the 20w50 in bulk so i didn't pay close attention to how much went in, but topped off and my oil level is correct. i plan on changing my oil right away. i hope new bueller's read this to learn from my f#^& up. signed   em bear ass ed
Posted:  31 Jul 2008 03:57 [?]  
This is what I'm talking about, I like the technical discussion going on here. Has anyone called Amsoil to see what they say? I would imagine that if your running Amsoil 20w50, which I assume is a synthetic lube designed for engines, the same would hold true that it has anti-wear agents and shouldn't be run in the primary. Captain, I doubt you did any harm, don't be so hard on yourself. People make mistakes. After talking to the royal purple guy and doing a lot of research, I am gonna recommend RP to everyone I come across and I will be switching to it just as soon as I can.
Posted:  31 Jul 2008 04:20 [?]  
yeh, thank's! i cant believe i did that!!!! cant blame the amsoil dealer though, i requested oil for a SPORTSTER, but i am going to see if i can get the next batch for cost. "we" should have looked at the application chart.
Posted:  31 Jul 2008 04:31   Last Edited By: Buellysses[?]  
I have a friend that races legends cars.  A mini race car with a 1200cc yamaha...  they run nothing but Amsoil 20w50.  (those engines share engine/trans/clutch oil)  The bottle says it's specifically designed for v-twins and says buell and harley on it.  *not that you can believe everything you read on a bottle.

I just bought a case of it from him and ran it in my engine.  Seems to run a bit cooler, but it also seems to make more "harley" noises (valve train noises)...
Posted:  31 Jul 2008 14:29 [?]  
Don't worry about it Captain.  It is ok just get that oil out of there asap.  The Amsoil doesn't have any additives in it so you can run the same 20w50 in your primary that you do in the swingarm that is perfectly fine.  Same goes for the RP 20w50.  I was running BelRay Synthetic in mine and I think I am going to switch over to RP my next oil change which will probably be next weekend.
Posted:  12 Aug 2008 21:07 [?]  
Put RP 20w50 in both holes this mornin. The service guys said he shouldn't say cuzz he supposed to push Harley brand to the end, but that I made the best decision. Only rode around a bit, but the shifting clunk is much quieter. Also Neutral is right where it should be, was always a bitch finding it with that Harley shizz.
Posted:  13 Aug 2008 01:11 [?]  
I not saying I trust everything (or anything) the Harley dealer says about Buells but they recommend the Harley syn. oil for both holes. I have been running that aggressively for about 2000 miles now and it seems great. Also my bike has just been broken in so I just switched to synthetic.
Posted:  13 Aug 2008 05:42 [?]  
I have a lot of faith in Harley oil for a Harley, but for a Buell I wanted to do the research. There's a lot performance and that requires a lot of protection. I would not say Harley oil would be even remotely bad, but I think RP would be better. Thanks for everyone's input, I really like a good discussion, especially about Buells.
Posted:  13 Aug 2008 06:21 [?]  
I hear a lot of people swear by Royal Purple and Amsoil. I don't know where to get RP where I live But I'm sure if I looked hard enough I'll find it. I'm definitely gonna try Amsoil or RP next oil change and the points you brought up (Bordsnbikes) are very interesting and make sense. It's always good to do your homework, even better when someone else does it for you.
Posted:  13 Aug 2008 17:48 [?]  
Haha, happy to help out with homework. I am having trouble finding a good selection of it, Jegs has the stuff but you have to pay shipping. But sometimes you gotta pay for quality.

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