We have a 2018 Sunseeker 3010DS. We relaxed the factory gas cap with a locking one from local Canadian Tire. BAD IDEA. Result was a bunch of error codes and console alerts and some cost in getting a mechanic to check them out and reset. Seems that the Ford system is a closed one.
We have a 2018 Sunseeker 3010DS. We relaxed the factory gas cap with a locking one from local Canadian Tire. BAD IDEA. Result was a bunch of error codes and console alerts and some cost in getting a mechanic to check them out and reset. Seems that the Ford system is a closed one and cannot tolerate a gas cap that vents, so be careful that you use a gas cap that is suitable. The mechanic was not sure that Ford even had a locking gas cap.
I got a locking gas cap for my 2016 E450 Forester and it works great, no error codes and the lariat fits it too. I got it at Parts Geek (partsgeek.com) it's a Gates 31842Y for $12.73.
On our 2014 2500TS Sun Seeker we bought a locking gas cap from Canadian Tire and it works ok. Main reason was to protect the 55 gallons of fuel in the tank.
Luckily no faults and it works fine.
Must have been lucky