[AlsGoldWing]

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Hi guys My1200needs clutch fluid and it calls for Dot 4 but all i can find in the Dot 4 is Synthetic is that ok to use .

 

[retiredintime]

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Yes, that is fine to use...

 

[Oldboy]

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You can use it, but bleed all the old stuff out. It won't mix.

 

[chris in va]

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It's DOT 5 silicone that won't mix with DOT 4 or 3.

 

[Wolfman]

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Oldboy wrote:

You can use it, but bleed all the old stuff out. It won't mix.

Incorrect. Dot 4 and Dot 4 synthetic mix just fine.

I use Dot 4 synthetic all the time.

 

[Popeye]

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Yup, I use DOT 4 Syn .....no problems.

 

[nobbie]

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Is the synthetic any less nasty if you get it on your plastics? Speaking from an experience with the regular DOT 4.

 

[Kit Carson]

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nobbie wrote:

Is the synthetic any less nasty if you get it on your plastics? Speaking from an experience with the regular DOT 4.

No, the synthetic likes to eat up plastic and painted surfaces also. Every time I have occasion to deal with brake fluid I wrap a large towel around the master cylinders, and pack rags around a banjo bolt, and have one in my hand. If you wipe it instantly if you do spill some so far I have not seen it harm anything, but if left just for a few seconds, it will do harm.

DOT5 synthetic which is silicone based is safe, but also opens up a whole new can of worms and is not a good deal for a used bike with fluid already in it, and if like one of the new sport bikes comes from the factory with it, one has to make sure you tell the service shop, or they might put regular fluid in there and cause problems.

Kit