2004 Chrysler Crossfire Owner's Manual - Page 184

184 MAINTAINING YOUR VEHICLE Engine Oil Selection Only use synthetic engine oils, approved to MB 229.3 or MB 229.5, such as Mobil 1 SAE 0W-40. The FFS may not alert for an oil change at the proper interval if an unapproved engine oil is used; engine damage and reduced engine life may result. Disposing of Used Engine Oil Care should be taken in disposing of used engine oil from your vehicle. Used oil, indiscriminately discarded, can present a problem to the environment. Contact your dealer, service station, or governmental agency for advice on how and where used oil can be safely discarded in your area. Engine Oil Filter The engine oil filter should be replaced at every engine oil change. Engine Oil Filter Selection All DaimlerChrysler Corporation engines have a fullflow type disposable oil filter. Use a filter of this type for replacement. The quality of replacement filters varies considerably. Only high quality filters should be used to assure most efficient service. Mopar Engine Oil Filters are high quality oil filters and are recommended. Materials Added To Engine Oils Do not add materials (other than leak detection dyes) to engine oil. Engine oil is an engineered product and its performance may be impaired by supplemental additives. Drive Belts - Check Condition and Tension At the distance shown in the maintenance schedules, check all drive belts for condition and proper tension. Improper belt tension can cause belt slippage and failure.