So long T6... it's been nice... Oil choices... - Honda Shadow Forums : Shadow Motorcycle Forum
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post #1 of 24 (permalink) Old 07-04-2019, 10:43 AM Thread Starter
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So long T6... it's been nice... Oil choices...

Welp... I hate to say it since I really enjoyed the better pricing of the Rotella T6 oil but it seems our relationship has come to an end. I can't say for sure that it is because of the formula change I read about or not, but this is my experience.


Some time back, can't say for sure how long ago, I started to notice clutch 'chatter'. It only happened on a steep incline when taking off from a stop. I've read about people upgrading their clutch springs and at 60,000+ miles I figured it was that and/or clutch wear. Being a flatlander, steep inclines are few and far between so I wasn't overly concerned and decided to wait for actual slippage before installing new clutch disks and springs.


Approximately 3 or 4 months ago I started to notice another symptom. When shifting at high RPMs (hauling butt that is)... there seemed to be limited slippage in the clutch. The best way to describe it would be that the clutch acted like I had released it a little slower than I actually had. In other words, engine RPM wouldn't match a fully engaged clutch reading for a split second after I released the handle. No slippage occurred at all once the clutch was fully engaged. At first I attributed it to springs/disc wear but after reading a thread on here about the formula change in T6 I decided to experiment.


Three weeks ago I was due an oil change. I decided to purchase Castrol 06112 POWER 1 4T 10W-40 full synthetic motorcycle oil. In the last three weeks there has been no clutch chatter and no slippage (I ride almost daily and have put 521miles on the bike). I can only attribute it to the change in oil.


I don't pretend to be an oil expert and am only telling my experience in the matter.
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-================================Sometimes life seems to be delivering punches,
When in all reality....
It's delivering wisdom...

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Last edited by Zanshin; 07-04-2019 at 10:53 AM. Reason: Added the 521 miles of results
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post #2 of 24 (permalink) Old 07-04-2019, 11:23 AM
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Yup... I agree with you. I was a longtime fan of Rotella T6 and used it for years. But then, as you and I and everyone has read on the internet (and even from Shell/Rotella themselves) the chemical oil engineers or whoever, decided to monkey with the formula! They say T6 is still JASO-MA certified, but, it's just not the same anymore. Something, somewhere, I don't know, within the actual "recipe" has changed. People have experienced knocking and shifting issues within this past year or so, and wrote about the bad experience with today's current version of T6.

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post #3 of 24 (permalink) Old 07-04-2019, 12:14 PM
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Thanks for the observation.

I am using Rotella T4 and noticed changes in the clutch operation under heavy load also. They changed from T to T4 and the package states improvements for diesel engines. So does that include friction modifiers we have always avoided?


I tried Valvoline Motorcycle oil but had a lot of clutch slip and went back to T4 for now.


So many oilology threads, but if they keep changing oil formulas, I guess we need to compare notes again. Good to hear what others have discovered.
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post #4 of 24 (permalink) Old 07-04-2019, 12:35 PM
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As a further note, I am looking for and reading threads about these various oils and there is a lot of research and facts but they are from 2010 and so on. Rotella changed their formula only a few years ago so we need all new data.

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1983 750 Shadow
From the past=
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1962 Honda 305 Dream
1965 Honda 305 Dream
1971 Honda 175 scrambler
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post #5 of 24 (permalink) Old 07-04-2019, 06:56 PM
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Still searching around I found this list of over 1400 Motorcycle JASO oils. Most not from this country, but what a list, updated to July 2019!


http://www.jalos.or.jp/onfile/pdf/4T_EV_LIST.pdf
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1983 750 Shadow
From the past=
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1962 Honda 305 Dream
1965 Honda 305 Dream
1971 Honda 175 scrambler
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post #6 of 24 (permalink) Old 07-05-2019, 12:20 AM
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Is there some reason for not using the recommended Honda brand motorcycle oil for your bike? Wouldn't using it eliminate the concern you all seem to have for the additives it contains or doesn't contain?

I am coming from an older Triumph Tiger background.
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post #7 of 24 (permalink) Old 07-05-2019, 12:31 AM
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Probably the best solution, but twice the price.

Maybe worth having half the aggrevation.

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1983 750 Shadow
From the past=
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1962 Honda 305 Dream
1965 Honda 305 Dream
1971 Honda 175 scrambler
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post #8 of 24 (permalink) Old 07-05-2019, 04:46 AM
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At less than $6/qt at the local Honda shop it's a no-brainer for me. Very convenient. And for only one or two oil changes per year, the expense is even more of a no-brainer as I waste no time researching additives unlike many members here.

I am coming from an older Triumph Tiger background.
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post #9 of 24 (permalink) Old 07-05-2019, 03:58 PM
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Quote:
Originally Posted by tjkoko View Post
Is there some reason for not using the recommended Honda brand motorcycle oil for your bike? Wouldn't using it eliminate the concern you all seem to have for the additives it contains or doesn't contain?
I like to use oil that is readily available everywhere 24/7/365. Not just when the Honda shop is open.
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post #10 of 24 (permalink) Old 07-05-2019, 06:03 PM
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Quote:
Originally Posted by gonerydin View Post
I like to use oil that is readily available everywhere 24/7/365. Not just when the Honda shop is open.

Me too...


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