I have the UPR clean side catch can. Installed it in November at about 11k miles. Caught about an ounce over the winter. It's at 16k miles now and nothing in the can. I have been using 89 Chevron and moved away from the 89 Maverick gas. I have a 800 mile trip coming up. We'll see if that...
My 24 maverick has the front plate. It was put on before the law was changed. It may "accidentally" fall off. My Mustang on the other hand is a rebel and has never had a front plate.