Chevy Duramax

RECOMMENDED SERVICE INTERVALS

6.6l (lb7) 2500hd / 3500hd

OIL CHANGE: Every 5,000 miles
TIRE ROTATION: Every 5,000 miles
FUEL FILTER REPLACEMENT: Every 15,000 miles (maximum)*
AUTOMATIC TRANSMISSION SERVICE: Every 25,000 miles
COOLANT FLUSH: Every 45,000 miles
FRONT & REAR DIFFERENTIAL: Every 45,000 miles
(sooner if launching a boat)

Brake fluid and power steering fluid should be inspected during every service and flushed accordingly.
Steering components should be lubricated during every oil change service.
Air filter should be inspected during every service and replaced accordingly.

6.6l (lly) 2500hd / 3500hd

OIL CHANGE: Every 5,000 miles
TIRE ROTATION: Every 5,000 miles
FUEL FILTER REPLACEMENT: Every 15,000 miles (maximum)*
AUTOMATIC TRANSMISSION SERVICE: Every 25,000 miles
COOLANT FLUSH: Every 45,000 miles
FRONT & REAR DIFFERENTIAL: Every 45,000 miles
(sooner if launching a boat)

Brake fluid and power steering fluid should be inspected during every service and flushed accordingly.
Steering components should be lubricated during every oil change service.
Air filter should be inspected during every service and replaced accordingly.

6.6l (lbz) 2500hd / 3500hd

OIL CHANGE: Every 5,000 miles
TIRE ROTATION: Every 5,000 miles
FUEL FILTER REPLACEMENT: Every 15,000 miles (maximum)*
AUTOMATIC TRANSMISSION SERVICE: Every 25,000 miles
COOLANT FLUSH: Every 45,000 miles
FRONT & REAR DIFFERENTIAL: Every 45,000 miles
(sooner if launching a boat)

Brake fluid and power steering fluid should be inspected during every service and flushed accordingly.
Steering components should be lubricated during every oil change service.
Air filter should be inspected during every service and replaced accordingly.

6.6l (lmm) 2500hd / 3500hd

OIL CHANGE: Every 5,000 miles
TIRE ROTATION: Every 5,000 miles
FUEL FILTER REPLACEMENT: Every 15,000 miles (maximum)*
AUTOMATIC TRANSMISSION SERVICE: Every 25,000 miles
COOLANT FLUSH: Every 45,000 miles
FRONT & REAR DIFFERENTIAL: Every 45,000 miles
(sooner if launching a boat)

Brake fluid and power steering fluid should be inspected during every service and flushed accordingly.
Steering components should be lubricated during every oil change service.
Air filter should be inspected during every service and replaced accordingly.

6.6l (lml) 2500hd / 3500hd

OIL CHANGE: Every 5,000 miles (def fluid should be added every service)
TIRE ROTATION: Every 5,000 miles
FUEL FILTER REPLACEMENT: Every 15,000 miles (maximum)*
AUTOMATIC TRANSMISSION SERVICE: Every 25,000 miles
COOLANT FLUSH: Every 45,000 miles
FRONT & REAR DIFFERENTIAL: Every 45,000 miles
(sooner if launching a boat)

Brake fluid and power steering fluid should be inspected during every service and flushed accordingly.
Steering components should be lubricated during every oil change service.
Air filter should be inspected during every service and replaced accordingly.

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