Near the end of the season I installed an RK Chain and Sprocket Kit.
I've always used Kerosene to clean my chain before lubing but I just noticed on the RK website that they
indicate to not use Kerosene to clean RK chains.
I've seen so may videos by reputable sites saying Kerosene can be used.
RK says:
RK Chain recommends cleaning a sealed chain with only a mineral based O ring safe chain cleaner. Do not use kerosene or motor oil because that can damage the seals
I guess I will be using a mineral based Oring safe cleaner like Motul chain cleaner for the start of next season.
Kerosine IS diesel. It's a matter of refining, Kerosine being just a little lighter an oil than diesel, but it is fundamentally the same sort of thing and should have very similar properties with regards to how it affects an o ring.
That said, I don't know. Maybe RK is coming out with a special formula chain cleaner, or maybe we have been using the wrong thing to clean our chains for a long time and just don't know it. Wouldn't be the first time I used something that worked but might not have been the very best.