The prime reason for mis-fuelling is that the diesel pump filler nozzle is larger than the petrol nozzle.
So, both the petrol and diesel filler nozzle will fit.
Diesel Key has been discontinued - replaced by Diesel Fill which is more robust device which fits a greater number of vehicles.
We only have Diesel Fill for vehicles with screw-on type fuel caps but hope to extend this to bayonet type fuel cap fittings in the near future. If you have a screw in fuel cap and the filler neck does not have a flap Diesel Fill should fit your vehicle.
******Applications are vehicle specific so before you purchase this please contact us in order to check the compatibility of the Diesel Fill in your vehicle.
*The Diesel Fill Cap may not work with aftermarket long range tanks.
**ALL PICTURES SHOWN ARE FOR ILLUSTRATION PURPOSE ONLY.ACTUAL PRODUCT MAY VARY DUE TO STOCK AVAILABILITY.
Responsive Diesel Fill Mis Fueling Prevention Device
Applications are vehicle specific so before you purchase this please contact us in order to check the compatibility of the Diesel Key in your vehicle.(firstname.lastname@example.org)