2012 Nissan Altima Replacement Fuel Filters – CARiD wwwd››Fuel Filters & Parts›Nissan›AltimaNissan Altima 2012, OEM In-Line Fuel Catalyst by Fitch® Fuel Catalyst. Get improved performance and reduced emissions with the Fitch Fuel Catalyst! Unlike expensive additives that must be continually replenished, you purchase this.. where is the fuel filter located - 2012 Nissan Altima Nov 17, 20182012 Nissan Altima / Where is the fuel filter.. Where is the fuel filter located (2012 Nissan Altima) just trying to determine the location of the fuel filter, i have been told it could be in the gas tank. Visitor in Marrero, LA on . November 17, 2018. Tags: nissan, altima. Answer.