2003 Gmc T7500 Oil Type

Recommended oil for my 2003 T7500

Product Name	Product Description	Product
Heavy-Duty Synthetic Diesel Oil 15W-40	AMSOIL Heavy-Duty Synthetic Diesel Oil is a special formula made for your hard-working equipment. It is engineered to provide four times better wear protection for your 2003 Gmc. Check your owner's manual for the oil change interval. This is the best synthetic diesel oil for your Gmc and be sure to get an awesome oil filter.	ADPQT-EA Add To Cart Add To Cart
Heavy-Duty Synthetic Diesel Oil 5W-40	AMSOIL Heavy-Duty Synthetic Diesel Oil is made for hard-working equipment. Get the best synthetic diesel oil for your 2003 Gmc T7500 Isuzu 6HK1 engine. It is engineered to provide 4X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222 .Refer to the owner's manual for the specific oil change interval. Order today! Made in the U.S.A.	ADOQT-EA Add To Cart Add To Cart
Signature Series Max-Duty Synthetic Diesel Oil 15W-40	Our top-grade synthetic diesel oil! Get the best synthetic diesel oil for your 2003 Gmc T7500 Isuzu 6HK1 engine and confidently extend drain intervals! Provides six times better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222. Heavy-Duty On-/Off-Road: Three times (3X) OEM1 recommendation, not to exceed 60,000 miles/600 hours or oneyear, whichever comes first. Turbodiesel Pickup: Two times (2X) OEM1 recommendation, not to exceed 25,000 miles or one year, whichever comes first. Gasoline Engine S	DMEQT-EA Add To Cart Add To Cart

Product Name

Product Description

Capacities

Product

Heavy-Duty Synthetic Diesel Oil 15W-40

AMSOIL Heavy-Duty Synthetic Diesel Oil is a special formula made for your hard-working equipment. It is engineered to provide four times better wear protection for your 2003 Gmc. Check your owner's manual for the oil change interval. This is the best synthetic diesel oil for your Gmc and be sure to get an awesome oil filter.

ADPQT-EA

Add To Cart

Heavy-Duty Synthetic Diesel Oil 5W-40

AMSOIL Heavy-Duty Synthetic Diesel Oil is made for hard-working equipment. Get the best synthetic diesel oil for your 2003 Gmc T7500 Isuzu 6HK1 engine. It is engineered to provide 4X better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222 .Refer to the owner's manual for the specific oil change interval. Order today! Made in the U.S.A.

ADOQT-EA

Add To Cart

Signature Series Max-Duty Synthetic Diesel Oil 15W-40

Our top-grade synthetic diesel oil! Get the best synthetic diesel oil for your 2003 Gmc T7500 Isuzu 6HK1 engine and confidently extend drain intervals! Provides six times better wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222. Heavy-Duty On-/Off-Road: Three times (3X) OEM1 recommendation, not to exceed 60,000 miles/600 hours or oneyear, whichever comes first. Turbodiesel Pickup: Two times (2X) OEM1 recommendation, not to exceed 25,000 miles or one year, whichever comes first. Gasoline Engine S

DMEQT-EA

Add To Cart

Recommended oil filters for my 2003 T7500

Product Name	Product Description	Product
Donaldson P-Series Lube Filters	This lube filter is made for your 2003 Gmc T7500 and provides top protection.	P559128-EA Add To Cart Add To Cart

Product Name

Product Description

Product

Donaldson P-Series Lube Filters

This lube filter is made for your 2003 Gmc T7500 and provides top protection.

P559128-EA

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Recommended transmission fluids for my 2003 T7500

Product Name	Note	Capacities	Product Description	Product
Torque-Drive® Synthetic Automatic Transmission Fluid	Automatic Transmission Fluid		Awesome protection under extreme temperature! Protect heavy-duty transmissions with this made in the USA oil. Follow the service interval in your owner's manual. Protect your Gmc.	ATD1G-EA Add To Cart Add To Cart
SAE 50 Long-Life Synthetic Transmission Oil	Manual Transmission Fluid		This is a special formula which will protect your transmission from harsh heavy duty use and high torque situations and commercial usage. Will reduce wear and tear and protect gears while improving shifting. Extend the life of your transmission for up to 5 years or 500,000 miles. Get the best synthetic transmission oil for your 2003 Gmc T7500.	FTF1G-EA Add To Cart Add To Cart

Product Name

Note

Capacities

Product Description

Product

Torque-Drive® Synthetic Automatic Transmission Fluid

Automatic Transmission Fluid

Awesome protection under extreme temperature! Protect heavy-duty transmissions with this made in the USA oil. Follow the service interval in your owner's manual. Protect your Gmc.

ATD1G-EA

Add To Cart

SAE 50 Long-Life Synthetic Transmission Oil

Manual Transmission Fluid

This is a special formula which will protect your transmission from harsh heavy duty use and high torque situations and commercial usage. Will reduce wear and tear and protect gears while improving shifting. Extend the life of your transmission for up to 5 years or 500,000 miles. Get the best synthetic transmission oil for your 2003 Gmc T7500.

FTF1G-EA

Add To Cart

Recommended coolants for my Gmc T7500

Product Name	Product Description	Capacities	Product
Heavy-Duty Antifreeze & Coolant	This heavy duty antifreeze for your 2003 Gmc T7500 will give you awesome heat protection. Will also protect against corrosion, freezing and boil over. Get top protection under extreme temperatures and severe conditions. Protects aluminum, steel, cast iron, copper, brass and solder alloys.		ANTHD1G-EA Add To Cart Add To Cart

Product Name

Product Description

Capacities

Product

Heavy-Duty Antifreeze & Coolant

This heavy duty antifreeze for your 2003 Gmc T7500 will give you awesome heat protection. Will also protect against corrosion, freezing and boil over. Get top protection under extreme temperatures and severe conditions. Protects aluminum, steel, cast iron, copper, brass and solder alloys.

ANTHD1G-EA

Add To Cart

Maintenance and Fluid Information for 2003 GMC T7500 Isuzu 6HK1

For the 2003 GMC T7500 Isuzu 6HK1, you will find 15W-40 and 5W-40 in the engine-oil listings. The matching product listings include Heavy-Duty Synthetic Diesel Oil 15W-40, Heavy-Duty Synthetic Diesel Oil 5W-40, Signature Series Max-Duty Synthetic Diesel Oil 15W-40. Those are product matches, not proof that every listed oil meets every requirement for this engine. Check the manufacturer’s oil specification before choosing one.

What kind of oil does my 2003 GMC T7500 Isuzu 6HK1 take?

15W-40, 5W-40 is the engine-oil viscosity listed for this vehicle.

What oil filter is listed for my 2003 GMC T7500 Isuzu 6HK1, and what is the part number?

The oil-filter part numbers listed for this vehicle include P559128-EA.

How do I find the correct oil-change interval for my 2003 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.