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Maintenance Intervals

Detroit® DT12® On-Highway Series

When you buy a Detroit® product, you’re buying billions of miles of engineering excellence.

DT12-HE: Highly Efficient Long Haul

Maintenance Items

Miles

Kilometers

Weight

80,000 lbs or less

80,000 lbs or less

Standard Oil Drain Intervals

400,000

644,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 600,000*

966,000*

DT12-HE: Long Haul & Short Haul

Maintenance Items

Miles

Kilometers

Weight

Greater than 80,000 to 140,000 lbs

Greater than 80,000 to 140,000 lbs

Standard Oil Drain Intervals

300,000

483,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 400,000*

644,000*

DT12-HE: Severe Duty

Maintenance Items

Miles

Kilometers

Weight

Greater than 140,000 lbs

Greater than 140,000 lbs

Standard Oil Drain Intervals

180,000

290,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 180,000*

290,000*

DT12-H: Long Haul

Maintenance Items

Miles

Kilometers

Weight

80,000 lbs or less

80,000 lbs or less

Standard Oil Drain Intervals

400,000

644,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 400,000*

644,000*

DT12-H: Short Haul

Maintenance Items

Miles

Kilometers

Weight

Greater than 80,000 to 140,000 lbs

Greater than 80,000 to 140,000 lbs

Standard Oil Drain Intervals

300,000

483,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 400,000*

644,000*

DT12-HL: Long Haul

Maintenance Items

Miles

Kilometers

Weight

80,000 lbs or less

80,000 lbs or less

Standard Oil Drain Intervals

400,000

644,000

Maximum Oil Drain Intervals (with use of Maintenance System)

Up to 400,000*

644,000*

*Maintenance System will automatically adjust maintenance intervals depending on multiple factors (transmission type, cooler type, field conditions, driving style, etc). See DDC-SVC-BRO-0118 on DTNA Connect for more information. US & Canada Only.

On-Highway Warranty

Detroit® offers a standard 5 year / 750,000 mile warranty and a 3 year / 350,000 mile warranty on the clutch. Exclusions: CPCA and clutch - 3 years/350,000 miles; Yokes (sealing surface only) - 3 years/300,000 miles (follows drive-train warranty). Failure to comply with proper maintenance schedule (e.g. oil inspections, oil changes, etc.) may void warranty coverage.

Maintenance Intervals

Detroit® DT12® Vocational Series

DT12®-V: Short Haul

Maintenance Items

Miles

Kilometers

Weight

Greater than 80k to 140k LBS

Greater than 80k to 140k LBS

Literature Limit

300,000

186,000

Maintenance System Settings (Max Mileage)

Up to 400,000

Up to 249,000

A85 Codes

A85-002 Pick Up and Delivery (Short Haul) and A85-016 Transfer Refuse

A85-002 Pick Up and Delivery (Short Haul) and A85-016 Transfer Refuse

DT12®-V: Severe

Maintenance Items

Miles

Kilometers

Weight

Greater than 140,000 LBS

Greater than 140,000 LBS

Literature Limit

180,000

112,000

Maintenance System Settings (Max Mileage)

Up to 180,000

Up to 112,000

A85 Codes

A85-027 Heavy Haul Service and all other "severe applications".

A85-027 Heavy Haul Service and all other "severe applications".

DT12-VX: Severe

Maintenance Items

Miles

Kilometers

Weight

Greater than 140,000 LBS

Greater than 140,000 LBS

Literature Limit

180,000

112,000

Maintenance System Settings (Max Mileage)

Up to 180,000

Up to 112,000

A85 Codes

A85-027 Heavy Haul Service and all other "severe applications".

A85-027 Heavy Haul Service and all other "severe applications".

*Maintenance System will automatically adjust maintenance intervals depending on multiple factors (transmission type, cooler type, field conditions, driving style, etc.) See DDC-SVC-BRO-0118 on DTNA Connect for more information. US & Canada Only.

Vocational Warranty
Application GVW/GCW Warranty - Transmission
P&D < 110k lbs 36 mo / Unlimited
Construction < 140 lbs 36 mo / Unlimited
Transfer Refuse < 110 lbs 24 mo / Unlimited
Logging
< 140k lbs - DT12-V
< 250k lbs - DT12-VX
24 mo / Unlimited
Mining/Oil Field
< 140k lbs - DT12-V
< 250k lbs - DT12-VX
24 mo / Unlimited
Heavy Haul < 275 lbs 24 mo / Unlimited