Originally Posted by John V6
Exactly. I don't think it can be old fuel after 1600 miles

But today after adding Redex it seems well reduced. Thnking about it the car did c 700 miles from May 22 till Aug 23 so around 46 miles per month. From Aug 23 till June 24 it did c 200 miles so 20 miles per month. It might need more time to flush out and crud.

JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger