. MAINTENANCE MAINTENANCE PROCEDURE WATER FROM FUEL 4 - 25 CLEAN FUEL TANK NOTICE Never us e trichlen e for washi ng the inside of the tank. Use diesel f uel only. 1. Drain f n th e fuel tank , referring t o the steps 1. throug h 3. of the section of "DRAI TANK (PAGE 4-51)" in th 2. Remov e floor mat. 3. Remov e cover (1). 4. Remov e fuel s ensor 5. Wash i nside of the 6. After w ashing the t ank, ti ghten sensor (2), cov er (1) and floor 7. Close i nspectio n cover (4 drain valve and install fue