1989 GMC R2500 Oil Capacity, Types, & Filters

Your essential guide to 1989 GMC R2500 oil change is here! No more searching – find all the critical oil specs for your 1989 GMC R2500, including oil capacity, recommended oil viscosity (type), and the correct oil filter.

We cover all engine options, categorized by their specific engine codes, ensuring you get the right information for your specific configuration. Keep reading to discover everything you need for your next 1989 GMC R2500 oil change!

Scroll Table ➜

Engine & Code	Oil Capacity	Oil Viscosity/Type	Oil Filter
5.7L 8-cylinder [K] K	N/A	N/A	GM 12731179 GM 25010908 GM 19431429
6.2L 8-cylinder [J] J Diesel	7 quarts (with filter)	SAE 10W-30 (Below 16°C) SAE 15W-40 (Above -18°C) 30 (Above 0°C)	GM 19431429
7.4L 8-cylinder [N] N	N/A	N/A	GM 19431429

Select Your 1989 GMC R2500 Engine Option

5.7L 8-cylinder Engine Code [K] K

Engine:

5.7L 8-cylinder [K] K [aka 5.7L V8 (Gas)]

Body & Trims:

Base, High Sierra, Sierra Classic

Oil Capacity:

N/A

Oil Viscosity/Type:

N/A

OEM Oil Filter:

GM 12731179, GM 25010908 and GM 19431429

Oil Filter Replaces:

12576499, 19210285, 19256044, 25010324, 25014377, 6437462, 89017342 and 25014831, 25160561, 6438384, 89060468

1989 GMC R2500 5.7L 8-cylinder [K] K oil change details

Oil Grade:

N/A

Oil Capacity:

N/A

Oil Viscosity/Type:

N/A

Name of Oil Filter:

N/A

Wix Oil Filter:

51061-EA

Wix Air Filter:

42098-EA

Coolant Capacity:

N/A

Oil Drain Plug Torque:

N/A

Notes:

N/A

6.2L 8-cylinder Engine Code [J] J Diesel

Engine:

6.2L 8-cylinder [J] J Diesel [aka 6.2L V8 (Diesel)]

Body & Trims:

Base, High Sierra, Sierra Classic

Oil Capacity:

7 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (Below 16°C)
SAE 15W-40 (Above -18°C)
30 (Above 0°C)

OEM Oil Filter:

GM 19431429

Oil Filter Replaces:

25014831, 25160561, 6438384, 89060468

1989 GMC R2500 6.2L 8-cylinder [J] J Diesel oil change details

Oil Grade:

CF-4

Oil Capacity:

7 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Oil Viscosity/Type:

SAE 10W-30 (Below 16°C)
SAE 15W-40 (Above -18°C) - SAE 15W-40 is the preferred oil.
30 (Above 0°C)

Name of Oil Filter:

N/A

Wix Oil Filter:

51061-EA

Wix Air Filter:

N/A

Coolant Capacity:

25 quarts

Oil Drain Plug Torque:

N/A

Notes:

N/A

7.4L 8-cylinder Engine Code [N] N

Engine:

7.4L 8-cylinder [N] N [aka 7.4L V8 (Gas)]

Body & Trims:

Base, High Sierra, Sierra Classic

Oil Capacity:

N/A

Oil Viscosity/Type:

N/A

OEM Oil Filter:

GM 19431429

Oil Filter Replaces:

25014831, 25160561, 6438384, 89060468

1989 GMC R2500 7.4L 8-cylinder [N] N oil change details

Oil Grade:

N/A

Oil Capacity:

N/A

Oil Viscosity/Type:

N/A

Name of Oil Filter:

N/A

Wix Oil Filter:

51061-EA

Wix Air Filter:

42098-EA

Coolant Capacity:

N/A

Oil Drain Plug Torque:

N/A

Notes:

N/A

GMC R2500 – Engine Oil details by Year

1987

1988

1989