Using this coolant reservoir cap is easy. First, make sure your engine is cool. Then, you can either press - fit or glue the cap onto the OEM cap. Just follow the normal installation steps. As for maintenance, it's pretty straightforward. Since it's made of high - quality billet aluminum, it's durable. But it's a good idea to check it regularly for any signs of damage or loosening. Remember, this cap is meant for REVA caps on 2011 - 2019 trucks, and we can't guarantee it'll fit aftermarket caps. So, keep that in mind when using it.