I just had to replace my filter ,I think there may be some local gas stations with a little garbage in the tanks,like rock longs shell gas station in ojai
I made it about 3/4 of the way up 33 after a fill there 3 weeks ago,I am about to replace it again ,just because there was soo much gray and black garbage that came out of my filter.The car was running just fine before that voyage and after a filter change it ran fine again.