750. K8 oil for track - Suzuki GSX-R Motorcycle Forums Gixxer.com

 
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post #1 of 10 (permalink) Old 03-27-2019, 04:26 AM Thread Starter
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750. K8 oil for track

Sorry for another oil post.....

I just did an oil change on my track only K8 and have filled with full synthetic but not started the bike yet as I'm a fraction short.

I've just had 4L of Castrol Power1 delivered and it's Semi-syn. 1st thought was to send back but after a bit of Google it looks like my bike SHOULD be semi-syn however most track riders seem to think go fully syn due to living so high in the rev-range all the time.

Thoughts please.
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post #2 of 10 (permalink) Old 03-27-2019, 04:44 AM
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Re: 750. K8 oil for track

First of all,don't mix the two...if you have full syn in the crankcase now,top off with the same exact oil.

Nothing wrong w semi-syn,I use Motul 5100 4T in my bikes that see high rpm top end runs.

On the flip side,I use non-synthetic oil in both my turbo bikes(300rwhp,450+rwhp respectively) as per the builders recommendation. Zero issues.

Whichever oil you use,just don't use automobile engine oil,unless it has a JASO rating such as Rotella T6 which is also a very popular oil here&you can buy it at Walmart for under $25 a gal..

Topic has been debated ad nauseam over the past few decades on this forum....

Last edited by oldgixxer; 03-27-2019 at 04:46 AM.
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post #3 of 10 (permalink) Old 03-27-2019, 04:50 AM Thread Starter
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Thx, I'll just top up with full-syn and then swap the lot to semi-syn after a few TDs.

Can I ask why not to mix full and semi syn?

Going from one to another will always leave some left behind.
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post #4 of 10 (permalink) Old 03-28-2019, 12:46 PM
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Re: 750. K8 oil for track

Been using Rosella T6 for years in both my street and track bikes.....no issues.
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post #5 of 10 (permalink) Old 03-28-2019, 01:05 PM Thread Starter
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Is that full or semi syn?
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post #6 of 10 (permalink) Old 03-28-2019, 02:51 PM
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Re: 750. K8 oil for track

Any oil with JASO-MA rating. Using it at the track or on the street is moot.
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post #7 of 10 (permalink) Old 03-28-2019, 04:05 PM Thread Starter
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JASO MA-2 is OK?
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post #8 of 10 (permalink) Old 03-28-2019, 04:12 PM
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Re: 750. K8 oil for track

Quote:
Originally Posted by Cream_Revenge View Post
JASO MA-2 is OK?
Absolutely. The manual calls for that spec. I know absolutely fuck-all about chemistry and the difference between the two, but the "MA" is an older standard. "MA-2" is different, but the manual says either.
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post #9 of 10 (permalink) Old 03-28-2019, 04:36 PM Thread Starter
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Cheers
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post #10 of 10 (permalink) Old 03-28-2019, 06:32 PM
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Re: 750. K8 oil for track

Quote:
Originally Posted by Cream_Revenge View Post
Is that full or semi syn?

T6 is the fully synthetic


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