Had a lot of trouble with passing the safety inspection yesterday due to the gas cap not checking out. I don't have the cap that was on the car when I bought it eleven years ago due to the safety inspector breaking that one trying to check it. I replaced the cap with one I bought directly from a Jag dealer in Plano, Tx. It didn't look like the one that got broken but the parts guy said it would work. Everything seemed OK until yesterday whenl one inspector rejected the cap. Went to another inspector that was friendly and he passed it but it still didn't seem to work right. The cap is exactly like the one on my 2000 XK8.

Does the 95 XJ6 need a unique cap for that car that is different than required for later cars?

 

My MY 99 XJR cap is the exact same, as is my MY 02 XJ8.

 

your inspectors sound ****.
It is slightly off topic, but my 3.2 petrol filler was fine when I bought the car. Then one day I went to put gas in it, and there was a piece of cut-off garden hose stuck in the filler, with the cap on normally. I had to extrract it with difficulty with screwdriver and pliers (thank God for underbonnet tool kit), as the springloaded flap was closing on it, stopping it coming out. I guess someone had got frightened while siphoning my petrol one night, and either cut the hose off flush, or shoved it right in.
Anyway, this all damaged the sealing springloaded flap which is now bent crooked and doesn't seal.
Luckily our vehicle inspectors don't go there in NZ

 

It is not that the inspectors are **** it is the test equipment that is not capable of testing the cap. When I first got the car eleven years ago the tech broke the cap trying to connect it to the pressure tester. I bought another cap for $50 and from then on they just tested the cap by checking for a hiss when removing the cap. Now the state insist they use the test equipment which will not fit the cap on either of my cars. Thank goodness for one test station with nice reasonable people that understand that when taking off the cap you get a big hiss the tank is sealed. In fact my X300 will stay pressurized over night. I drove it last night and this morning removed the cap with a loud hiss resulting. There is going to be a problem in test stations because some dummies figure they must use the cap tester instead of their head.