IdaD wrote:
I do both fuel filters and the oil and oil filter each spring. Both tend to show 25-35% left at that point, give or take. I run full synthetic and use the stratapore (?) Fleetguard filter. No issues yet.
I did finally buy one of those aluminum filter plugs and that's a gamechanger for the 4th gen and up Cummins trucks. It's still a stupid place to put an oil filter but the plug sure helps a lot - no mess and it makes it easy to pull out a filter full of hot oil.
I have switched from the Stratapore to Donaldson-AMZ/OIL oil filter as they filter even better and are US Made.
Simply remove intake tube and RnR filter from the top it's very easy and no spilled oil.