2.8L Duramax Diesel Maintenance Schedule

2.8L Duramax Maintenance Schedule & Service Information

The 2.8L Duramax features a service monitoring system that identifies oil change and fuel filter replacement intervals based on driving behavior and conditions. These service procedures should be performed at the maximum interval(s) listed in the chart below OR as indicated by the instrument cluster display; whichever comes first.

 

2.8L Duramax Diesel Maintenance Schedule (Service Intervals)

Procedure

Service Interval(s)

Notes/Comments

Replace engine air filter

45,000 miles/4 years

Check filter condition at oil change intervals and replace as necessary

Replace engine oil & oil filter

7,500 miles

Replace engine oil and filter within 600 miles of "CHANGE ENGINE OIL SOON" message displayed on the instrument cluster

Replace fuel filter/drain fuel water separator

37,500 miles/2 years

Replace immediately when "CHANGE FUEL FILTER" message is displayed on the instrument cluster

Replace serpentine belt

150,000 miles/10 years

Check belt condition at oil change intervals and replace as necessary

Replace engine timing belt

150,000 miles

Regardless of condition or driving type, replace timing belt at 150,000 miles

Replace transmission fluid & filter

45,000 miles

No OEM service interval defined for normal use, replace transmission fluid and filter at 45,000 miles intervals if towing/hauling

Flush engine coolant/service cooling system

150,000 miles/5 years

Use DEX-COOL silicate free engine coolant only

Replace transfer case fluid

97,500 miles (normal)
45,000 miles (severe)

Replace transfer case fluid immediately if submerged in water

Replace front differential fluid

No OEM service interval defined; replace differential fluid immediately anytime a differential is submerged in water

Replace rear differential fluid

2.8L Duramax Service Part Numbers

Engine air filter

ACDelco A3216C

Oil filter

ACDelco PF2262G

Oil pan drain plug

GM 11562588

Oil filter cap

ACDelco 55595790

Fuel filter

ACDelco TP1007

Serpentine belt

ACDelco 6K854A

Timing belt

ACDelco TB349

Thermostat

ACDelco 131190

Thermostat gasket

ACDelco 12650487 (inlet to thermostat housing)
ACDelco 12650486 (housing to block)

Radiator cap

ACDelco 13502353

Transmission filter

ACDelco 24236933

Transmission pan gasket

ACDelco 24225800

2.8L Duramax serpentine belt routing diagram

2.8L Duramax diesel belt routing diagram
Chevrolet Colorado/GMC Canyon pickups

2.8L Duramax Diesel Oil/Fluid Specs & Capacities

Note - fluid capacities are nominal; always fill to proper level as indicated by dipstick, to the bottom of the fill plug, etc. The fluid capacities listed herein are measured in U.S. quarts ("qts") and/or gallons ("gal").

Oil/Fluid

Fluid Spec

Capacity

Engine oil

ambient temp > -20° F

SAE 5W-30

6.0 qts

ambient temp < - 20° F

SAE 0W-40

Engine coolant

GM 12346290 DEX-COOL silicate free engine coolant

28.5 qts/7.125 gal (pickups)
14.4 - 16.9 qts (vans)

Automatic transmission fluid

ACDelco 10-9243 DEXRON-VI automatic transmission fluid (ATF)
Use ACDelco 10-4101 DEXRON-HP for van applications

~6.7 qts (service refill)

Transfer case fluid

ACDelco 10-9243 DEXRON-VI automatic transmission fluid (ATF)

2.0 qts

Front differential fluid

SAE 75W-90 synthetic gear oil

< 2 qts, fill to fill plug level

Rear differential fluid

SAE 75W-90 synthetic gear oil

Diesel exhaust fluid (DEF)

N/A

5.4 gal (pickups), 5.5 gal (vans)