J.D S130 ( 42" deck ) or the S140 ( 48" deck ) with the 22 H.P. V-Twin cylinder engine . Takes beating . Have the D130 with the 42" deck for 9 (10 ? ) years . Mow little over 3 acres . Use 5w-30 synthetic . Usually PENNZOIL Platinum . Change it once a year near the end of mowing season .