EXPL ANA TION OF MAINTENANCE ITEMSMAINTENANCEScheduled Maint enanc e Log 68Engine Oil and Oil FilterReplace the oil filter and dr ain andrefill the engine oil at specified inter -vals. F or recommended oil gr ade and viscosit y, refer to y our O wner 'sManual. Some models ar e equippedwith a r eplaceable oil-filter elementand oil-filter cap O-ring; r eplace bothat each oil change. F or instructions onhow to r eset the r eminder light, r eferto y our O wner 's Manual.Engine V alve Clear ance (IS F, SC)Inspect for e xcessive lifter noise andengine vibr ation and adjust if neces-sary. (All other models ar e equippedwith hy draulic v alve lash adjuster s thatrequir e no periodic clear ance inspec-tion or adjustment.)Exhaust Pipes and MountingsVisually inspect the e xhaust pipes,muffler and hanger s for cr acks, deterior ation and damage. St art the engine and listen car efully for any e xhaust leak age. T ighten connec-tions and r eplace par ts as neces sary.Fuel Lines and Connections, F uelTank B and and F uel T ank V aporVent S ystem HosesVisually inspect for corr osion, dam-age, cr acks, and loose or leaking connections. T ighten connections and r eplace par ts as neces sary.Fuel T ank Cap Gask etVisually inspect for cr acks, deterio-ration and damage and r eplace if neces sary.Nuts and Bolts on Chas sisCheck that tightnes s of the seat -mounting bolts and fr ont/ rear suspen-sion-member r etaining bolts matchestorque measur ements specified in theRepair Manual.Power S teering FluidWhen inspecting, visually check thepower steering fluid le vel on the see-through r eser voir. Add fluid as neces-sary. For fluid specifications, r efer toyour O wner' s Manual.Rack and Pinion As semblyInspect the r ack and pinion as semblyfor signs of leak age, damage andloose electrical connections. T ightenconnections and if y ou disco ver anyleak age or damage, ha ve it r epair edimmediately b y a qualified technician.Road T estWhile driving the v ehicle, check forproper oper ation of engine, tr ansmis-sion, br akes and steering. Also checkfor abnormal noise or vibr ation fr omany par t of the v ehicle.81183_09_LexusSedans_046_080f_R1 7/2/08 7:51 AM Page 68
