I live in RI, and they do not list cetane at the pump. Lately I've been using Mobil diesel. My average lately has been 46 mpg with winter tires on. Though I've changed my driving style significantly. In the next couple of weeks, I'll be swapping out the winter for my summer tires. Hoping to see a 20-30% increase in my mileage at that point.
As for Shell, about 4 fillups ago I had a problem. It was extremely cold that day, and the pump ran very slow. As a result, the pump never developed back pressure and ended up spilling out onto the ground. The weather played a major part of it.
Skrebel33
|