1995 Buick Roadmaster Owner's Manual - Page 286

~ ~ I - Maintenance Schedule I ~ ~~ 27,000 Miles (45 000 km) 0Change engine oil and filter (or every 3 months, whichever occursfirst). An Emission Control Service? 30,000 Miles (50 000 km) 0Change engineoil and filter (or every 3 months, whicheveroccurs first). An Emission ControlService.* 0Lubricate the suspension, steering linkage, transmission shiftlinkage, parking brake cable guides, underbody contact points and linkage (or every6 months, whichever occurs first). 17 Change the rear axle gear lubricant if vehicle is used to pull a trailer. 0Inspect engine accessory drive belt (or every 24 months, whichever occurs first). An Emission Control Service. Drain, flush andrefill cooling system (or first). every 24 months, whichever occurs See "Engine Coolant"in the Index for (Continued) 7-12