Owner’s Manual for the inboard:
1GM10 on Yanmar Site
1GM10_OPERATION MANUAL_en
Service Manual: Link
Oil – 15W40 (summer temps) or 10W30 (cooler temps)
Never use API Service Category CG-4 or CH-4 oils.
Oil filter- Yanmar 119305-35151 (Fram PH6607)
Fuel filter – main (Fram CS3608?; Racor 2000, 2 Micron)
Fuel filter – engine/2nd (Fram C7516)
