Workshop Repair and Service Manuals GMC SIERRA
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Fluid and Lubricant Recommendations

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Fluid and Lubricant Recommendations

Usage

Fluid/Lubricant

Engine Oil – Gasoline

The engine requires engine oil approved to the dexos™ specification. Oils meetingthis specification can be identified with the dexos™ certification mark. Look forand use only an engine oil that displays the dexos™ certification mark of the properviscosity grade. SAE 5W-30 GM-P/N-19293000 (Canadian-P/N-19286321) is the best viscositygrade for the Vehicle. Do not use other viscosity oils such as SAE 10W-30,10W-40, or 20W-50.

Engine Oil – Diesel

Engine oils with the letters CJ-4 are required for this vehicle. The CJ-4 designationcan appear either alone or in combination with other American Petroleum Institute(API) designations, such a API CJ-4/SL. These letters show API levels of quality.SAE 15W-40 is best for the vehicle. When it is very cold, below ?18°C (0°F), use SAE5W-40 to improve cold starting. These numbers on the oil container show its viscosity,or thickness. Donot use other viscosity oils such as SAE 10W-30, SAE 10W-40, or SAE 20W-50.

Engine Coolant

50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant GM-P/N-12346290(Canadian-P/N-10953464).

Hydraulic Brake System

DOT 3 Hydraulic Brake Fluid GM-P/N-12377967 (Canadian-P/N-89021320)

Hydraulic Clutch System

Hydraulic Clutch Fluid GM-P/N-12345347 (Canadian-P/N-10953517)

Windshield Washer

Optikleen® Washer Solvent

Automatic Transmission – 2ML70

DEXRON®-VI GM-P/N-88861003 (Canadian-P/N-88861004)

Automatic Transmission – 4L60-E/4L65-E/4L70-E

DEXRON®-VI GM-P/N-88861003 (Canadian-P/N-88861004)

Automatic Transmission – Allison

DEXRON®-VI GM-P/N-88861003 (Canadian-P/N-88861004)

Manual Transmission

Synchromesh Transmission Fluid GM-P/N-12345349 (Canadian-P/N-10953465)

Key Lock Cylinders

Multi-Purpose Lubricant, Superlube GM-P/N-12346241 (Canadian-P/N-10953474)

Front Axle – 1500, 2500 HD and 3500 HD Series with Four-Wheel Drive

Synthetic Gear Oil GM-P/N-88900401 (Canadian-P/N-89021678). (GM Spec 9986115)

Rear Axle

Synthetic Gear Oil GM-P/N-88900401 (Canadian-P/N-89021678) through 2013 model yearfor all 8.6/9.5 LD axles. Use this fluid in 10.5/11.5 HD axles for all model years.

Synthetic Gear Oil GM-P/N-19300457 (Canadian-P/N-19300458) 75W85 for 2014 model yearand newer 8.6/9.5/9.76 axles.

Transfer Case – Four-Wheel Drive

DEXRON®-VI GM-P/N-88861003 (Canadian-P/N-88861004)

Front Axle Propshaft Spline or One-Piece Propshaft Spline – Two-Wheel Drive with AutomaticTransmission

Spline Lubricant, Special Lubricant GM-P/N-19257121 (Canadian-P/N-19257122)

Hood Hinges

Multi-Purpose Lubricant, Superlube GM-P/N-12346241 (Canadian-P/N-10953474)

Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge

Multi-Purpose Lubricant, Superlube GM-P/N-12346241 (Canadian-P/N-10953474)

Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage

Multi-Purpose Lubricant, Superlube GM-P/N-12346241 (Canadian-P/N-10953474)

Weatherstrip Conditioning

Weatherstrip Lubricant GM-P/N-3634770 (Canadian-P/N-10953518) or Dielectric SiliconeGrease GM-P/N-12345579 (Canadian-P/N-10953481)

Weatherstrip Squeaks

Synthetic Grease with Teflon, Superlube GM-P/N-12371287 (Canadian-P/N-10953437)

Engine Power Messages     ENGINE POWER IS REDUCED A computer monitors the operation of the engine. If the ENGINE POWER IS REDUCED messagecomes on while driving, there will be a reduction in performance and acceleration.You should take the vehicle in...
StabiliTrak® System     If equipped, the vehicle has a traction control system that limits wheel spin andthe StabiliTrak system that assists with directional control of the vehicle in difficultdriving conditions. Both systems turn on automatically...
General Information     Your vehicle is an important investment. This sectiondescribes the required maintenance for the vehicle. Follow thisschedule to help protect against major repair expenses resultingfrom neglect or inadequate maintenance. It may...
Recommended Fluids and Lubricants     This maintenance section applies to vehicles with a gasoline engine. If the vehiclehas a diesel engine and/or an Allison Transmission, see the maintenance schedule sectionin the Duramax diesel supplement. Fluids and...
Resistance Spot Welded Full Panel Replacement     Note:Use this procedure for all panels that are replaced at thefactory seams, unless a specific procedure exists in the CollisionRepair section of this vehicle's service information. Removal Procedure Warning:Refer toApproved...
Diesel Exhaust Fluid     Diesel Exhaust Fluid (DEF) is used with diesel engines to reduce the amount of regulatedemissions produced. The DEF system must be maintained for the vehicle to run properly. Locating Diesel Exhaust Fluid DEF can be...