Long story how this happened, but the result is that I now have about 2/3 HD primay/transmission fluid and 1/3 RedLine transmission fluid in my transmission. Both are fresh. I do not know if the RedLine is synthetic, but either way is it OK to run this or should I do a complete change?

In general, is there any reason why I cannot run a mix of synthetic and the HD trans. fluid together?

Thanks in advance.

 

Red Line Oil will mix with the other oil, and it will turn into a Synthetic blend that will not hurt a
thing at all in the primary. As for the transmission if the clutch starts to slip change it out asap.

 

I think the Redline "shockproof" is synthetic.
Any reason why a blend of the Redline and HD trans. fluid would cause the clutch to slip?

 

I run Redline shockproof in my trans and have 'topped' it off a time or 2 with other brands, never a problem. It shouldn't have any bearing on the clutch as it's in the trans and not the primary.

 

Clutch is in the primary so I wouldn't worry about that. I run Red Line heavy shockproof in the tranny and haven't had any problems. A mix shouldn't cause any problems

 

It should not be a problem but if it was mine,I would change it out and go with Redline.