Using this oil cap is easy. Just remove your old oil cap and screw on the new 'The Bolt' Oil Cap. It's a perfect factory fit, so you won't have any trouble installing it. Make sure to check the O - ring that comes with it and replace your old one. When it comes to maintenance, since it's made from 6061 aluminum with a zinc finish, it's quite durable. But it's a good idea to clean it regularly with a mild cleaner to keep its shine. There are no special tools needed for installation, and it won't get in the way of any hoses or intercooler piping. This oil cap fits a wide range of Subaru models from 1989 - 2020, including FRS/86, so you can be confident it will work for your car.