Review on WHDZ Ram Diesel Billet Aluminum Magnetic Fuel Cap: The Ultimate Def Cap for Ram, Gas, and Diesel Vehicles! by Timothy Bobbert

Excellent diesel/protection caps. However, there are two problems. Diesel fuel filler cap: The cap is the same size as the filler neck, so it cannot be grabbed. It's not a big problem for me, but my wife can't take it off. look at a picture Protective cover: It is well ventilated and keeps your protection dry. Solution: I just took a piece of wire, bent it a little and inserted it into the outer vent. it will air out a little more. about 10% if he had done that before. We live in a very dry place in Texas. Also, the ring on the cover was the OEM Def Viton. The O-ring that comes with this protective cap is made of filamentary rubber only. Also, I was disappointed that they were made in China :(Trump will spank me when he finds out ;)