[Yooperforeman]

I bought the AMSOIL cleaner and foam filter oil.The oil for the filter is great but the cleaner has to be used a couple times to get the filter clean.I've used dish soap and water before,that works good to get the foam clean too.

 

[Yooperforeman]

The oil is very important,if you don't have foam air filter oil then you can use 90 weight gear oil.