Has anyone experienced anything like this?
I have a 98 328i. When I got the car, I began using Sunoco 91 octane. Performance was good, no knocking. But, just like clockwork, a day after I filled the tank with gas, the check engine light came on. Got the fault code, replaced gas cap. Good for two weeks. A day or so after every fill up at the same station, check engine light came on. Same code everytime..
The slow learner I am, I went to Amoco 93 octane.
No check enginel light for three fill ups now.
has anyone experienced anything like this with fuel?