If you want to do this to your "ump-teen" year old plastic fenders to give them a fresh look, knock yourself out. But I wouldn't recommend this method. It may have a short term benefit, but you're adding a heat history to that plastic that it was not designed to withstand, and it will likely end...
If you're at that point (light on), does it really matter how many miles you have? You've already on the way to a possible issue. So, you'll either make it to the next gas station or you won't. Knowing the mileage becomes sort of pointless.
How about some type of thing like The Club Steering wheel lock. But it would go around and lock two of the flip handles together so they couldn't open. Could again use a screw in each handle to secure it.
Ditto. Had to involve Jeep Cares to get the parts because of back orders, etc. They actually got things handled for me. Dropped off in the morning, and got my free rental, and got a call that afternoon to pick it up. Noticeable difference for me. And the tech made sure my steering wheel was...
Edit: I also refuse to advertise for anyone so unless you have a vested interest in your dealership, I made sure they didn't slap their garbage on only to have to remove!
This was the absolute first thing I did with mine. Absolutely cannot stand having dealer stickers on my vehicles. The wife...