I had to buy and use an aftermarket, ugly looking cap when the car went through a Drive Clean test here and was told the cap failed the pressure test. I had that cap for a week and replaced it with a factory one.
Now i find wet spot under the cap sometimes before i removed the cap for fuel and it smells gas.
I am 100% sure it's not from the last refuel 'cos i never overflow it.
Since it's a new cap, what else can i try to stop this?
Thanks for the advise.
92 300E 135,766 KM