2006 GMC Sierra 2500 HD PICKUP Oil Capacity, Types, & Filters

Your ultimate DIY maintenance guide for the 2006 GMC Sierra 2500 HD PICKUP oil change is here! No more searching – find all the critical oil specs for your 2006 GMC Sierra 2500 HD PICKUP, including exact engine oil capacity, the manufacturer recommended oil viscosity and type, and the correct OEM and aftermarket oil filters.

We cover all available engine options categorized by their specific engine codes, ensuring you get pinpoint accuracy for your specific vehicle configuration. Keep reading to discover everything required for a successful 2006 GMC Sierra 2500 HD PICKUP oil change!

Scroll Table ➜

Engine & Code	Oil Capacity	Oil Viscosity/Type	Oil Filter
6.0L 8-cylinder [2] LLY 2 Diesel Turbo	6 quarts (with filter)	SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS)	GM 12691158
6.6L 8-cylinder [D] LBZ 3 Diesel Turbo	10 quarts (with filter)	SAE 10W-30 (-18 To 38°C) SAE 15W-40 (Above -18°C) SAE 5W-40 (Below 38°C)	GM 12691158
6.6L 8-cylinder [U] U	10 quarts (with filter)	SAE 10W-30 (-18 To 38°C) SAE 15W-40 (Above -18°C) SAE 5W-40 (Below 38°C)	GM 12737094
8.1L 8-cylinder [G] G	6.4 quarts (with filter)	SAE 0W-30 (Below -29°C) SAE 5W-30 (All TEMPS)	N/A

Select Your 2006 GMC Sierra 2500 HD PICKUP Engine Option

6.0L 8-cylinder Engine Code [2] LLY 2 Diesel Turbo

Engine:

6.0L 8-cylinder [2] LLY 2 Diesel Turbo [aka 6.0L V8 (Gas)]

Body & Trims:

SL, SLE, SLT, WT

Oil Capacity:

6 quarts (with filter)

Oil Viscosity/Type:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)

OEM Oil Filter:

GM 12691158

Oil Filter Replaces:

12677108, 88917036, 97214983

2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder [2] LLY 2 Diesel Turbo oil change details

Oil Grade:

SEO23

Oil Capacity:

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

Oil Viscosity/Type:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS) - SAE 5W-30 is the preferred oil.

Name of Oil Filter:

N/A

Wix Oil Filter:

51042-EA

Wix Air Filter:

42487-EA

Coolant Capacity:

16.2 quarts - For models with an Automatic Transmission (AT) and an engine fan.
16.7 quarts - For models with an Automatic Transmission (AT) and an electric fan.
16.7 quarts - For models with a Manual Transmission (MT) and an engine fan.

Oil Drain Plug Torque:

18 ft/lbs (Oil Drain Plug)

Notes:

N/A

How much oil does the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo) take?

A complete oil change for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder (with engine code [2] LLY 2 Diesel Turbo) requires 6 quarts (with filter) of engine oil. To ensure safety and performance, always verify the level on the dipstick after refilling.

What type of oil is recommended for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo)?

For optimal engine longevity, the manufacturer recommended motor oil for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder is using:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)

Ensure the oil you choose meets the SEO23 standard.

What is the best oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo)?

The factory-recommended OEM oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder is the GM 12691158. If you prefer a top-tier aftermarket option, the Wix 51042-EA is an excellent choice.

What is the oil drain plug torque spec for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo)?

To prevent leaks or stripped oil pan threads, the drain plug on the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder should be tightened to exactly 18 ft/lbs (Oil Drain Plug) and we also recommend installing a new crush washer with every oil change.

What is the correct air filter for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo)?

For optimal engine performance and clean airflow, the recommended engine air filter replacement for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder is the Wix 42487-EA. It is a good maintenance habit to inspect this filter during every oil change.

What is the coolant capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo)?

The total engine coolant (antifreeze) capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.0L 8-cylinder is:

Always ensure you use the manufacturer-approved coolant color and type to prevent internal corrosion.

6.6L 8-cylinder Engine Code [D] LBZ 3 Diesel Turbo

Engine:

6.6L 8-cylinder [D] LBZ 3 Diesel Turbo [aka 6.6L V8 (Diesel)]

Body & Trims:

SL, SLE, SLT, WT

Oil Capacity:

10 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C)
SAE 5W-40 (Below 38°C)

OEM Oil Filter:

GM 12691158

Oil Filter Replaces:

12677108, 88917036, 97214983

2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder [D] LBZ 3 Diesel Turbo oil change details

Oil Grade:

CH-4

Oil Capacity:

10 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 (-18 To 38°C)
SAE 15W-40 (Above -18°C) - SAE 15W-40 is the preferred oil.
SAE 5W-40 (Below 38°C)

Name of Oil Filter:

N/A

Wix Oil Filter:

57202-EA

Wix Air Filter:

N/A

Coolant Capacity:

25.4 quarts - For models with an Automatic Transmission (AT).
24.9 quarts - For models with a Manual Transmission (MT).

Oil Drain Plug Torque:

13 mm Hex - 18 ft/lbs (Oil Drain Plug).
16 mm Hex - 62 ft/lbs (Oil Drain Plug)

Notes:

N/A

How much oil does the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo) take?

A complete oil change for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder (with engine code [D] LBZ 3 Diesel Turbo) requires 10 quarts (with filter) of engine oil. To ensure safety and performance, always verify the level on the dipstick after refilling.

What type of oil is recommended for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo)?

For optimal engine longevity, the manufacturer recommended motor oil for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is using:

SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C)
SAE 5W-40 (Below 38°C)

Ensure the oil you choose meets the CH-4 standard.

What is the best oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo)?

The factory-recommended OEM oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is the GM 12691158. If you prefer a top-tier aftermarket option, the Wix 57202-EA is an excellent choice.

What is the oil drain plug torque spec for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo)?

To prevent leaks or stripped oil pan threads, the drain plug on the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder should be tightened to exactly 13 mm Hex - 18 ft/lbs (Oil Drain Plug).
16 mm Hex - 62 ft/lbs (Oil Drain Plug) and we also recommend installing a new crush washer with every oil change.

What is the correct air filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo)?

For optimal engine performance and clean airflow, the recommended engine air filter replacement for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is the Wix or other equivalent found in air filter cross-reference catalog for this trim compatible with your intake system. It is a good maintenance habit to inspect this filter during every oil change.

What is the coolant capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo)?

The total engine coolant (antifreeze) capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is:

25.4 quarts - For models with an Automatic Transmission (AT).
24.9 quarts - For models with a Manual Transmission (MT).

Always ensure you use the manufacturer-approved coolant color and type to prevent internal corrosion.

6.6L 8-cylinder Engine Code [U] U

Engine:

6.6L 8-cylinder [U] U [aka 6.6L V8 (Diesel)]

Body & Trims:

SL, SLE, SLT, WT

Oil Capacity:

10 quarts (with filter)

Oil Viscosity/Type:

SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C)
SAE 5W-40 (Below 38°C)

OEM Oil Filter:

GM 12737094

Oil Filter Replaces:

12731172, 19210283, 25010633, 25014748, 88984215

2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder [U] U oil change details

Oil Grade:

CH-4

Oil Capacity:

10 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 (-18 To 38°C)
SAE 15W-40 (Above -18°C) - SAE 15W-40 is the preferred oil.
SAE 5W-40 (Below 38°C)

Name of Oil Filter:

N/A

Wix Oil Filter:

57202-EA

Wix Air Filter:

N/A

Coolant Capacity:

25.4 quarts - For models with an Automatic Transmission (AT).
24.9 quarts - For models with a Manual Transmission (MT).

Oil Drain Plug Torque:

13 mm Hex - 18 ft/lbs (Oil Drain Plug).
16 mm Hex - 62 ft/lbs (Oil Drain Plug)

Notes:

N/A

How much oil does the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U) take?

A complete oil change for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder (with engine code [U] U) requires 10 quarts (with filter) of engine oil. To ensure safety and performance, always verify the level on the dipstick after refilling.

What type of oil is recommended for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U)?

For optimal engine longevity, the manufacturer recommended motor oil for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is using:

SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C)
SAE 5W-40 (Below 38°C)

Ensure the oil you choose meets the CH-4 standard.

What is the best oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U)?

The factory-recommended OEM oil filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is the GM 12737094. If you prefer a top-tier aftermarket option, the Wix 57202-EA is an excellent choice.

What is the oil drain plug torque spec for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U)?

What is the correct air filter for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U)?

What is the coolant capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder ([U] U)?

The total engine coolant (antifreeze) capacity for the 2006 GMC Sierra 2500 HD PICKUP 6.6L 8-cylinder is:

25.4 quarts - For models with an Automatic Transmission (AT).
24.9 quarts - For models with a Manual Transmission (MT).

Always ensure you use the manufacturer-approved coolant color and type to prevent internal corrosion.

8.1L 8-cylinder Engine Code [G] G

Engine:

8.1L 8-cylinder [G] G [aka 8.1L 8-cylinder]

Body & Trims:

All

Oil Capacity:

6.4 quarts (with filter)

Oil Viscosity/Type:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)

OEM Oil Filter:

N/A

Oil Filter Replaces:

N/A

2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder [G] G oil change details

Oil Grade:

SEO23

Oil Capacity:

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

Oil Viscosity/Type:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS) - SAE 5W-30 is the preferred oil.

Name of Oil Filter:

N/A

Wix Oil Filter:

57099-EA

Wix Air Filter:

42487-EA

Coolant Capacity:

25 quarts - For Heavy-Duty (HD) models with an Automatic Transmission (AT) and an engine fan.
26.9 quarts - For models with an Automatic Transmission (AT) and an engine fan.
27.1 quarts - For models with a Manual Transmission (MT) and an engine fan.

Oil Drain Plug Torque:

21 ft/lbs (Oil Drain Plug)

Notes:

N/A

How much oil does the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G) take?

A complete oil change for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder (with engine code [G] G) requires 6.4 quarts (with filter) of engine oil. To ensure safety and performance, always verify the level on the dipstick after refilling.

What type of oil is recommended for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G)?

For optimal engine longevity, the manufacturer recommended motor oil for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder is using:

SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS)

Ensure the oil you choose meets the SEO23 standard.

What is the best oil filter for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G)?

The factory-recommended OEM oil filter for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder is the specified part recommended by dealer or owner’s manual. If you prefer a top-tier aftermarket option, the Wix 57099-EA is an excellent choice.

What is the oil drain plug torque spec for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G)?

To prevent leaks or stripped oil pan threads, the drain plug on the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder should be tightened to exactly 21 ft/lbs (Oil Drain Plug) and we also recommend installing a new crush washer with every oil change.

What is the correct air filter for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G)?

For optimal engine performance and clean airflow, the recommended engine air filter replacement for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder is the Wix 42487-EA. It is a good maintenance habit to inspect this filter during every oil change.

What is the coolant capacity for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder ([G] G)?

The total engine coolant (antifreeze) capacity for the 2006 GMC Sierra 2500 HD PICKUP 8.1L 8-cylinder is:

Always ensure you use the manufacturer-approved coolant color and type to prevent internal corrosion.

People also ask – 2006 GMC Sierra 2500 HD PICKUP

What is the oil capacity of a 2006 GMC Sierra 2500 HD PICKUP?

Depending on the specific engine option, the 2006 GMC Sierra 2500 HD PICKUP oil capacity ranges from 6 to 10 quarts. Here is the exact oil capacity breakdown for each available engine configuration:

• 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo): 6 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
• 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo): 10 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
• 6.6L 8-cylinder ([U] U): 10 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.
• 8.1L 8-cylinder ([G] G): 6.4 quarts. (with filter). This is the capacity with the oil filter installed. Always check the oil level after refilling.

Always check your dipstick after refilling to ensure the proper level.

What type of oil does a 2006 GMC Sierra 2500 HD PICKUP use?

Across its 4 available engine configurations, the 2006 GMC Sierra 2500 HD PICKUP uses the following motor oil viscosities: SAE 0W-30 (Below -29°C)SAE 5W-30 (All TEMPS) and SAE 10W-30 (-18 To 38°C)SAE 15W-40 (Above -18°C)SAE 5W-40 (Below 38°C). Using the correct manufacturer-approved oil weight is crucial for engine health. Here are the specific oil type requirements by engine:

• 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo):
Grade: SEO23
SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS) - SAE 5W-30 is the preferred oil.

• 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo):
Grade: CH-4
SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C) - SAE 15W-40 is the preferred oil.
SAE 5W-40 (Below 38°C)

• 6.6L 8-cylinder ([U] U):
Grade: CH-4
SAE 10W-30 (-18 To 38°C)
SAE 15W-40 (Above -18°C) - SAE 15W-40 is the preferred oil.
SAE 5W-40 (Below 38°C)

• 8.1L 8-cylinder ([G] G):
Grade: SEO23
SAE 0W-30 (Below -29°C)
SAE 5W-30 (All TEMPS) - SAE 5W-30 is the preferred oil.

What is the best oil filter for the 2006 GMC Sierra 2500 HD PICKUP?

The proper oil filter depends on your exact engine code. The 2006 GMC Sierra 2500 HD PICKUP utilizes the following premium aftermarket Wix oil filters across its lineup: 51042-EA, 57202-EA and 57099-EA. Here is the specific OEM and aftermarket filter data for each engine:

• 6.0L 8-cylinder ([2] LLY 2 Diesel Turbo):
OEM Filter: GM 12691158
Wix Filter: 51042-EA

• 6.6L 8-cylinder ([D] LBZ 3 Diesel Turbo):
OEM Filter: GM 12691158
Wix Filter: 57202-EA

• 6.6L 8-cylinder ([U] U):
OEM Filter: GM 12737094
Wix Filter: 57202-EA

• 8.1L 8-cylinder ([G] G):
OEM Filter: Check Dealer Part or Owner's Manual
Wix Filter: 57099-EA

How often should I change the oil in my 2006 GMC Sierra 2500 HD PICKUP?

For modern models running full synthetic oil, oil change intervals are typically every 7,500 to 10,000 miles. However, for older GMC Sierra 2500 HD PICKUP generations (1985-2010) or those using conventional/synthetic-blend fluid, changing the oil and filter every 3,000 to 5,000 miles is highly recommended to prevent sludge buildup. Regardless of engine (6.0L 8-cylinder, 6.6L 8-cylinder and 8.1L 8-cylinder), you should change your oil at least once a year even if you don’t reach the mileage limit.

GMC Sierra 2500 HD PICKUP – Engine Oil details by Year