Originally Posted by Ideating
Johnson CM30 or Johnson CM90
I saw EC has the CM30 but I read on the SLK forum that some people are using the CM90.
Has there been any consensus which delivers more reliable/ better performance?
It is my understanding that the CM90 flows
too much/too fast for our application (possible cavitation?). The CM30 is the proven way to go; or replace with a stock O.E.M. Bosch. My humble $.02