The rubber coolant plug on the back was discontinued in '89, so you won't be able to replace that.
The chances of the fuel filter needing replacement are pretty slim. It was designed to survive more than a million miles. It's not listed in the maintenance schedule on purpose. Check it before you replace it - put a fuel line from the fuel rail return to a bucket, jumper the fuel pump power, check that you're getting enough flow and that the fuel in the bucket is clean. I've heard of four filters that needed replacing, and IIRC they were all from cars that had sat for years with water in the tank or were running high methanol mixtures.
The chances of the fuel filter needing replacement are pretty slim. It was designed to survive more than a million miles. It's not listed in the maintenance schedule on purpose. Check it before you replace it - put a fuel line from the fuel rail return to a bucket, jumper the fuel pump power, check that you're getting enough flow and that the fuel in the bucket is clean. I've heard of four filters that needed replacing, and IIRC they were all from cars that had sat for years with water in the tank or were running high methanol mixtures.