Slick 50 Engine treatment

[HOGtied]

I normally use HD Synth 3 in the engine but, I've had a bottle of Slick 50 4 stroke m/cycle treatment oil on the shelf for years and never got around to putting it in my BMW.
Now the owner of a 2010 FLHTCU with 25,000kms on it already and was thinking of using it in the engine.

Anybody else used this 'snake oil' product ?

Thanks,

[Panhead Boris]

I've used it on loads of Jap bikes, but my experience with hydraulic tappets is not great (understatement).

There is cleaning agent that removes all varnish / deposits from the entire engine. The idea is that the filter will catch them,

BUT the results when the crap gets into the valve lifters are fatal.....on my V8, 4 valves were stuck open, trashing valves and pistons.


If you think your oilways are clean, you should be OK, but for my money the potential benefits do not outweigh the risks ....your call of course.

[Ming the Merciless]

Slick 50 is a reputable product and I've used it on a 949cc Moto Guzzi without problem, however I have been advised by others that the product is unsuitable for H-Ds due to the type of bearings used. So now I just stick to oil changes every 2,500 miles.

[kevscrivener]

Originally Posted by Ming the Merciless

Slick 50 is a reputable product and I've used it on a 949cc Moto Guzzi without problem, however I have been advised by others that the product is unsuitable for H-Ds due to the type of bearings used. So now I just stick to oil changes every 2,500 miles.

That's my understanding too. Slick 50 is fine for plain bearings but not rollers.

[Stokie]

I tried this on my sporty, big mistake. Clutch started slipping and a few weeks later puking oil out the breather. Maybe just a coincidence?