Well, fortunately, I never use Shell gasonline, even though that is the station closest to my house. Not because I've had problems with the fuel, however, but because of the ownership, employees, and environment of the station itself. Since I've had the car I've filled up at the local HEB grocery store, Sam'* club, and Chevron, which is where I filled up last.
Quick question for you knowledgeable people out there though. My mechanic said that it is possible the problem is being caused by a faulty Cam shaft sensor, which to my understanding, feeds signals to the coils telling them when to fire each cylinder. He warned that it might be a problem because the water leaking from the water pump was getting the sensor and it'* wiring wet. Could this be an issue? If so, how much am I looking at to replace it? And is it something I can do, considering my limited abilities?
Just an idea I thought I'd throw out to see what people thought about it.