Oil & Coolant Capacities Caterpillar C15 / ACERT Verified Factory Specs

Caterpillar C15 & ACERT Oil Capacity, Filter Part & Viscosity Specs

Factory OEM engine oil capacity specifications for Caterpillar C15 (6NZ/MBN/BXS/MXS) diesel engines. Standard vs deep sump pan volumes, filter change quantities, and drain plug torque.

Select Commercial Diesel Engine

Include Filter Fill (+4 Qts)

Total Engine Oil Fill Volume Required

11Gallons/44Quarts

Metric Equivalent: 41.6 Liters

Recommended Viscosity:15W-40 (Cat DEO-ULS CK-4)

OEM Filter Part:Cat 1R-1808 High Efficiency

Drain Plug Torque:70 ft-lbs (95 N·m)

Coolant System Capacity:Engine Block Only: 6 Gal | Typical Chassis Complete Fill: 14 Gal (53 L)

Type: Cat ELC (Extended Life Coolant Red/Strawberry)

Cat C15 Oil Fill Specifications

Sump Capacities

Standard Front/Center Sump: 10 Gallons (40 Quarts / 37.9 Liters)

Deep Rear Sump Pan: 11 Gallons (44 Quarts / 41.6 Liters)

Spin-On Filter Capacity: 1 Gallon (4 Quarts)

Filters & Torque Specs

OEM Oil Filter: Cat 1R-1808 High Efficiency Lube Filter

Oil Drain Plug Torque: 70 ft-lbs (95 N·m)

Viscosity: 15W-40 (Cat DEO-ULS CK-4)

Related Heavy Diesel Engineering Tools

Cross-reference other factory specifications and diagnostic tools for commercial diesel engines:

Pillar 3 →

Valve Lash & Overhead

Intake, exhaust, & Jake brake clearances.

Pillar 1 →

Oil & Coolant Sump

Standard vs deep pan fill volumes.

Pillar 4 →

Head Bolt Torque

Torque-to-yield angle stages & sequences.

Pillar 2 →

SPN Fault Code Lookup

J1939 fault diagnostics & sensor pins.

Technical Reference Citation: Caterpillar Service Information System (SIS) RENR2306 (C15 On-Highway Engine Specifications)

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