Full synthetic oil w wet clutch. - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
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post #1 of 13 (permalink) Old 10-05-2016, 10:40 PM Thread Starter
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Full synthetic oil w wet clutch.

Men! Hey I completely forgot about this but ever since I've had my Vstar 650 and recently acquired a Royal Star 1300, I've used full synthetic Castrol oil on them both and have never had any problems with either of the clutches slipping or acting up. And my cousin mentioned it needed to to have that JASO etc. stamp for certain types? Any thoughts or suggestions? Tried looking this up but didn't find the info I needed. Thanks...
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post #2 of 13 (permalink) Old 10-06-2016, 05:08 AM
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https://sites.google.com/site/vstar1...rs/oil-filters any oil is ok as long as it doesn't contain friction modifiers.
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post #3 of 13 (permalink) Old 10-06-2016, 09:31 AM Thread Starter
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I remember researching the additives a long time ago and completely forgot. Thank you sir for verifying.
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post #4 of 13 (permalink) Old 10-06-2016, 10:19 AM
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I've used Shell Rotella T and Rotella T6 in several of my bikes. While it is primarily used in diesel engines, it exceeds all motorcycle mfg recommendations, is JASO, and works with wet clutch. There are many, many bikers I know of that use this oil in their bikes.

The primary difference between the two is the "T" is a 15w40 and the "T6" is 5w40

Just did a lookup on these and it appears the "T" has now been renamed to "T4" and doesn't show it as a synthetic although it is JASO

The T5 is synthetic but I did not see a JASO for it.

You should do your own research on this. FWIW (and I'm sure some would disagree), a 5w40 can still be used in warmer climates.

I stopped using Rotella when I bought my Victory XCT in 2013 and switched to Amsoil 10w40 "Victory" specific. I found things seemed to work better with it in the Vic. I did try the Rotella for appx 5,000 kms.

Here are some links...

http://rotella.shell.com/products/t6...6-brochure.pdf

http://rotella.shell.com/products/ro...chure-v2-shell

http://rotella.shell.com/products/t5...-shell-1135838

Shell ROTELLA® T5 Synthetic Blend Heavy Duty Engine Oil | Shell ROTELLA®

2005 Road Star Midnight

Last edited by SilvrT; 10-06-2016 at 10:22 AM.
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post #5 of 13 (permalink) Old 10-06-2016, 07:32 PM
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Nick57, you link spells it out nicely.

I have been buying 'motorcycle oil' for my 650 and its about $1 more per quart.

Not falling for that any more - thanks.
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post #6 of 13 (permalink) Old 10-06-2016, 07:35 PM
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you can thank sick mick he keeps the wkb running.
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post #7 of 13 (permalink) Old 10-06-2016, 07:47 PM
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from the link "Most any 10W40 through 20W50 oil will do as long as it does not contain friction modifiers."

anyone else find it funny that motorcycle oil cost more, because it does NOT contain friction modifiers?
What do they do, put them in, then take them back out?!

I never knew the certification label had that info on the bottom.
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post #8 of 13 (permalink) Old 10-07-2016, 01:05 AM Thread Starter
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SilvrT - I do use Rotela in my xs650 and works beautifully...sooo in theory it being JASO, it could also be used in most wet clutch motors?

Yeah Nick57 that write up was great!
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post #9 of 13 (permalink) Old 10-07-2016, 10:45 AM
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Quote:
Originally Posted by Nwcali01 View Post
SilvrT - I do use Rotela in my xs650 and works beautifully...sooo in theory it being JASO, it could also be used in most wet clutch motors?
Correct! Is your xs650 not a wet clutch??

2005 Road Star Midnight
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post #10 of 13 (permalink) Old 10-10-2016, 11:37 PM Thread Starter
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Wet clutch. Just never figured a diesel oil could be used in a newer bike! Hmm.
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