Asphaltene combating it

[Chamberpains]

If its an 870 it'll make even more than the 871's. I get 7000 or so miles out of a 10 micron filter. Davco recommends a 50 micron on the 870's to this day and a 10 on the 871's. I speculate that its because they make so much asphaltene and filters plug quicker. Now that your tanks are clean you may get more miles out of your filter because its not filtering extra crap out of the tanks.