I installed the compliant gde tune yesterday. On the way back from dinner last night it showed filter 80% full so we popped up on the highway and took it for a drive until the regen was complete. Left this morning and about a mile from the house got a 90% full message. I drove it on the highway until the regen was complete. Any thoughts on why this would happen? I bought the truck second hand a few weeks ago from a one owner that had service done regularly.