e Last Service Date: J I NOV 2008 Due Ilyd. Test: NOV 2011 Ret. Date: JO 2023 S/N: 23. ECU Type: Keith C4 (Freon C34a1 24. ELT Make: NCI EX C406 NUM P/N: 453-5061 S/N: 06990. Battery Expiration Date: DEC 2013 25. Type Oil: #1 Engine: MOBIL 254, #2 Engine: MOBIL 254 MOB: DOD-L-85734 (BP-25), IGB: DO