I'm very picky with which aftermarket parts go on my JK Unlimited and this fuel door was no exception. Quality thru and thru. Easy installation. Looks like it rolled off the showroom floor already installed.

I was very skeptical when I bought this Blue Devil Head Gasket Sealer, but not anymore, it works and it works very well, just as it is advertised.I removed the thermostat and did the flush to get out any rust and debris. I partially filled the radiator with water and slowly poured in the Blue Devil while the engine was running. I had to do it twice, because one bottle wasn't enough to make the seal on the first try. It was working, but it would lose the seal and the engine would heat up quickly. I could tell it was working, but it seemed to me that there wasn't enough of the Blue Devil in my system, because it would fail and the engine would heat up, then it would seal and the engine temperature gauge would cool down, then it would fail and the engine would heat up, as I was sitting in the driveway watching the heat gauge while the engine was running.