In checking the Costco directory there aren't many Costco diesel filling stations around. I have used the Costco diesel fuel from the Bakersfield store and have had no problems getting in or out of the station. I have to be careful to choose the lane to get the fuel as my fill side is on the driver's side. If it's possible it would be nice if someone in that area would take their car to the station and check it out for our future use. Thanks for the info.