ANOTHER gearbox oil question
 

I know it’s been asked many times but looking for confirmation.
I’m from the uk and have a 2008 EC250.

The manual calls for 10w30 transmission oil.
Doesn’t say synthetic or mineral etc etc.

Can car engine oil be used or 4t oil.
Or is this 10w30 grade different to transmission oil.

Just trying to find something I can source locally.

Thank you.


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Don't use car oil! It has additives to help reduce friction which can destroy wet clutches. It has to be an oil designed for wet clutch systems. So, any 4T motorcycle oil will work in the transmission.

That said, I run ATF in all my bikes. :D

Thank you.
Read a lot of ATF being run by many people.
So no ill affects whatsoever with 100% ATF oil?
Any specific ATF you use?


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GG clutches can drag.

If I use Motul std Transoil it drags enough to make kickstarting in gear hard.

But if I used Motul Transoil Expert there is no trouble. Just check the bottle.

Never had any issues running it in 5 different bikes. My KDX now has over 1000 hours on it since a complete bottom rebuild, has had nothing but Type F ATF in it, and it's still going strong. Haven't even had to replace the clutch yet! You can check out most any video on my Youtube channel over the last three years on how hard I have run it with ATF for all those hours which includes some racing.

As far as brands, as long as it meets the spec I don't care. I'll run the cheapest Type F I can find.

My Gasser will be done really soon (some vids on there about it) and it will be getting ATF like always.

belray gearsaver worked really well in the 2010/11 squealing clutches with noise, drag and with longevity

my TXT i run 50/50 gear oil and ATF. ATF on its own felt notchy and gear oil on its own had drag issues

The Trials bikes have different feel and are diaphragm clutch, or at least my 14 is. Lovely thing. Old owner had it on Rock oil GRO. Clutch fantastic. Gearbox is knotchy to be fair, but it's not like you change it that often. Only in transport sections.

ANOTHER gearbox oil question
 

Thanks for the advice folks!
Can anyone tell me if this is suitable please?

https://uploads.tapatalk-cdn.com/202...20d1ac3ff2.jpg



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Maybe. It says it works for "immersed clutches" but it doesn't specify a weight and I'm not sure if the API and JASO specs are right.

ANOTHER gearbox oil question
 

It does specify weight as 10w30 on the label.
API says GL-4 which supersedes the ‘SF’ stared in my owners manual unless I am wrong and someone correct me please.
My manual says nothing about JASO specs so this might be something I need to look at.
Thanks for your advice and input.




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