1995 GMC Yukon Owner's Manual - Page 429

Maintenance Schedule II - Gasoline Engines With Heavy Duty Emissions DATE ACTUAL MILEAGE SERVICED BY: I Maintenance Schedule Footnotes I - Diesel Engines I The services shown i n this schedule up to 60,000 miles ( I 00 000 k m ) should be performed after 60,000miles ( 100 000 k m ) at the same intervals. When the vehicle is operated in extreme dust and dirt conditions (off-road), the air cleaner filtermay need to be checked as often as every 300 miles (483 kin) and replaced as necessary. 'I: .!, .!, -*--A- Drive axle service: Locking Differential - Drain fluid and refill at first engine oil change. At subsequent oil changes, check fluid and add fluid as needed. If driving in dusty areas or towing a trailer, drain fluid and refill every 15,000 miles (25 000 km). Standard Differential - Check fluid level and add fluid as needed at every engine oil change. I f driving in dusty areas or towing a trailer. drain fluid and refill every 15,000 miles (25 000 km). Mot-e frequent lubrication may be required for heavy-duty o r off-road use. 7-6 1