1990 Nissan 240sx tank size 1990 240SX Capacities and Specifications 1990 240SX Capacities and Specifications Refill capacities for engine model KA24E Fuel tank 15 7/8 gallons Coolant (with reservoir tank) 7 1/8 quarts... Source Source Source Source Source Source Source Source Source Source Read Also: 1990 Nissan 240sx gas tank size 90 Nissan 240sx specs 1993 Nissan 240sx specifications 1990 Nissan 240sx s13 specs 1990 Nissan 240sx fuel tank 1990 Nissan 240sx gas tank