CHANGE HYD OIL & FILTERS AT M4 10/11 HVI46 GRADE OIL  Oil Filter Hyd. Stock No. GPO109 Filtrec P/N R122C10B / Eqiv. Baldwin PT9237 / Stauff P/N RTE25D10B  Oil Filter Hyd. Stock No. GPO583 Filtrec P/N DHD240G10B / Eqiv. SE070G10B / FAI 0240EAM122F1