Originally Posted by Diesel911

There is nothing wrong with what I have now.

Also some Water Seperator type Filter cannot be mounted on the pressure side of the Fuel Supply System.
If the Fuel Pressure Relieve/Overflow valve is working correctly the Highest pressure in the Spin-on Filter is 18 psi. However, there is a lot of pulsationg going on.

So someone needs to check the filters specs to decide if it is right for their application.
This was from the description in the specs on Amazon "Maximum Flow Rate- 26 gph" I can't remember what the Flow Rate is but there is a flow Test in the Manual for the Fuel Supply Pump. It does say it can take "Rated Pressure- 50 PSI" and that is above what the actual pressure is on My Mercedes.