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The fuel filter for the 2003 INFINITI M45 is inside the fuel sending unit in the tank. Changing it requires dropping the gas tank. Look out for these indicators of a fuel filter issue: difficulty starting the engine, failure to start, rough idling, or struggling to accelerate in the city. A clogged fuel filter can contaminate your fuel with dirt and other debris, affecting your fuel pump and injectors. It also contributes to maximizing fuel efficiency.
The fuel filter for a 2003 Infiniti M45 is situated inside the fuel sending unit within the tank.