Originally Posted by Stevo

As suggested above I would hold off on that. Your filters will usually give you warning when they need changing. going up a hill you will notice the slightest "hesitation" now and then, thats "when" to change them. You will probably be able to drive for miles on the "flat" but change them when you get home and if you want to avoid needless cranking do it while the engines warm, fill the filter with clean fuel and crank it up. A Cummins does not like to be starved for fuel but our MBs aren't so particular. I keep rubber gloves, wrench for the filter bolt, and filters in the trunk in case I'm on a long trip and need to change them.