Cummins12V98 wrote:
The rear filter "appears" to be doing most of the work since the engine mount filter LOOKS almost new at 15K. So to extend the rear filter another 15K that appears to be doing most of the work does not seem correct.
Chrysler???????
Filters are cheap enough and easy enough to change, I change them both at the recommended interval. I agree with this statement though... my front filter is usually pretty clean looking when I change it. That leads me to believe that the frame mounted filter is doing the bulk of the work (either that or we have exceptionally clean fuel in the DC area...).
If we were saving thousands of dollars a year, I might consider it. But to save $50 every 15K miles doesn't seem worth the risk.