Using this oil pick-up is easy. Just install it in your Subaru EJ engine that has an EJ25 oil pan following the standard installation procedures. When using, make sure your engine is in good condition and running properly. As for maintenance, regularly check the tig-welded joints and zinc coating. If you notice any signs of wear or damage, inspect the O - ring gasket as well. Keep in mind the Proposition 65 warning if you're in California. With its limited lifetime warranty, you can have peace of mind while using this product.