1993 GMC Suburban Owner's Manual - Page 282

oil. If time determineswhenyouchangeyour oil, changethe filter each time youchangeyouroil. &XJdR8 B k k bk&!C Anengine block heater can be a big help if you have to park outside in very cold weather, 0°F (-18°C) or colder. If yourvehiclehasthisoption, see "Engine Block Heater" inthe Index. What to Bo with Used Oil: Used engineoil contains thingsthathave caused skincancer in laboratoryanimals.Don'tlet used oil stay on your skin for very long. Cieanyourskin and nailswithsoap and water, or a good hand cleaner.Washorproperlythrowaway clothing orrags containing used engineoil. Used oilcanbearealthreattotheenvironment. If you changeyour own oil, besure to drain all free-flowing oil fromthefilter before disposal.Don'tever dispose of oil by putting it in thetrash, pouring it ontheground, into sewers, or into streamsor bodies ofwater.Instead, recycle it by taking it to a place that collects used oil. If you haveaproblemproperlydisposing of your used oil, askyourdealer,aservicestation or a local recyclingcenterfor help. ir CYeaner .. ... PO216 Refer to the MaintenanceSchedule to determinewhen to replace the air cleaner filterandcrankcaseventilationfilter.See "Scheduled Maintenance Services" in theIndex. 6-1 6