Maintenance and Fluid Information for 2000 GMC T7500 Isuzu 6HK1
If you are planning an oil change on a 2000 GMC T7500 Isuzu 6HK1, the product lookup gives you two useful starting points: the engine-oil grades listed are 15W-40 and 5W-40. The matching product listings include Heavy-Duty Synthetic Diesel Oil 15W-40, Signature Series Max-Duty Synthetic Diesel Oil 15W-40, Signature Series Max-Duty Synthetic Diesel Oil 5W-40. Before buying oil, confirm that the product also meets the applicable manufacturer specification.
What oil filter number is listed for my 2000 GMC T7500 Isuzu 6HK1?
The oil-filter part numbers listed for this vehicle include P559128-EA.
How often should I change the oil in my 2000 GMC T7500 Isuzu 6HK1?
Use the manufacturer’s maintenance schedule for this engine and operating conditions. The available application data does not establish an exact oil-change interval.
Which synthetic engine oils are listed for my 2000 GMC T7500 Isuzu 6HK1?
Synthetic engine-oil listings for this vehicle include 15W-40, 5W-40. A synthetic listing does not by itself mean the vehicle manufacturer requires full synthetic oil.

