LC in auto transmissions OK, how about wet clutches?

[Titan]

If LC is ok for automatic transmissions, would it be OK for wet clutch motorcycle sumps?

 

[mburnickas]

I was going to ask the same thing about this and FP60 in my gsxr!

 

[Titan]

I'm sure FP60 will be fine in the fuel. BTW, have you noticed how BOTH of these fluids sure are slippery-feeling?

I have this question put to the LCD site, so, if they write back, I'll tell you what they say. My GUESS is that it will be OK....because I THINK auto trans clutch-packs are similar enough to wet clutches, but, I don't know that for a fact.

 

[Titan]

LCD responded and said, at 1 ounce per quart, it's fine for wet clutches. They report up to 3 ounces PER QUART without any problems in wet clutches.

 

[Titan]

Thanks. I certainly didn't make that clear enough!

 

[LCD]

Let me respond by saying we recommend 1/oz per quart, but have seen 3 oz/ per quart with no problems....but that was not a recommended treat rate.

 

[thwwx]

It did not slip my clutch, but gear shifting deteriorated rapidly after spirited riding.

 

[Titan]

thwwx, my shifting deteriorates fairly quickly, until I went to Delo 15-40. Do you mean your shifting deteriorated quicker when using LC with your usual oil compared to shifting deterioration without LC in your usual oil after spirited riding?

 

[Blake Sobiloff]

I used LC20 at the recommended levels with Red Line 10W-40 in my last OCI (2,300 miles) and experienced no deterioration in shift quality throughout the OCI. 1999 Kawasaki KLR650.

 

[Titan]

Put it in my sump with wet clutch. As advised, the clutch is fine. Bike shifts GREAT, too! BTW, added this to Delo 15w-40 in a 1500 V-twin.

 

[Shaman]

I noticed the improvement from the addition to LC going away very fast in my bike. After a hundred miles or so, it felt almost worse than it was.

 

[Titan]

I'll watch closely for that, Shaman. I actually change oil based upon shift-quality, not miles. As soon as it starts to feel like anything other than buttery-smooth, I change it out. It's a poor-man's shear-detector. I really don't expect LC to affect shearing of the oil, I'm using it as a cleaning agent...hoping it will keep blow-by carbon off of the innards of the engine.