2004 Chevrolet Silverado 2500 HD fluid and lubricant specifications

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Condition	Value


Automatic transfer case (NP8 Only)	AUTO-TRAK® II Fluid GM P/N 12378508 (Canadian P/N 10953626)
Diesel engine oil	Engine oil with the letters CH-4 or CG-4 is best for this vehicle. The CH-4 or CG-4 designation may appear either alone, or in combination with other API designations, such as API CH-4/SJ, CG-4/SH or CH-4/CG-4/SJ. These letters show American Petroleum Institute (API) level of quality.
Engine coolant	50/50 mixture of clean drinkable water and use only GM Goodwrench® DEX-COOL® or Havoline® DEX-COOL® coolant
Hydraulic brake system	Delco Supreme 11® Brake Fluid GM P/N 12377967 (Canadian P/N 992667) or equivalent DOT-3 brake fluid
Windshield washer solvent	GM Optikleen ® Washer Solvent GM P/N 1051515 (Canadian P/N 993033) or equivalent

expand_moreHydraulic clutch system


5-speed transmission	Hydraulic Clutch Fluid GM P/N 12345347 (Canadian P/N 10953517) or equivalent DOT-3 brake fluid
6-speed transmission	Hydraulic Clutch Fluid GM P/N 88958860 (Canadian P/N 88901244)


Power steering system	GM Power Steering Fluid GM P/N 1052884 -1 pint, 1050017 -1 quart, (Canadian P/N 993294 -1 pint, 993353 -1 quart) or equivalent

expand_moreManual transmission


5-speed transmission with low gear (MW3)	GM Goodwrench Synthetic Manual Transmission Fluid GM P/N 12346190 (Canadian P/N 10953477) or equivalent SAE 75W-85 GL-4 gear oil
5-speed transmission without low gear (MG5)	Synchromesh Transmission Fluid GM P/N 12345349 (Canadian P/N 10953465) or equivalent
6-speed transmission	TransSynd ™ Synthetic Automatic Transmission Fluid GM P/N 12378515 (Canadian P/N 88900701)


Automatic transmission	DEXRON®-lll, Automatic Transmission Fluid
Key lock cylinders	Multi-Purpose Lubricant, Superlube® GM P/N 12346241 (Canadian P/N 10953474) or equivalent
Floor shift linkage	Lubriplate® Lubricant Aerosol GM P/N 1052349 (Canadian P/N 992723) or equivalent or lubricant meeting requirements of NLGI # 2 Category LB or GC-LB
Chassis lubrication	Chassis Lubricant GM P/N 12377985 or equivalent or lubricant meeting requirements of NLGI # 2 Category LB or GC-LB
Front axle	SAE 80W-90 Axle Lubricant GM P/N 1052271 (Canadian P/N 10950849) or equivalent
Rear axle (with QS4 axle only)	SAE 75W-90 Synthetic Axle Lubricant GM P/N 12378557 (Canadian P/N 88901362) or equivalent
Manual transfer case (NP1, NP2, and NP3)	DEXRON®-lll Automatic Transmission Fluid
Front axle drive shaft spline or one-piece drive shaft spline (two-wheel drive with automatic transmission)	Spline Lubricant, Special Lubricant GM P/N 12345879 (Canadian P/N 10953511) or lubricant meeting requirements of GM 9985830
Rear drive line center spline	Chassis Lubricant GM P/N 12377985 or equivalent or lubricant meeting requirements of NLGI # 2, Category LB or GC-LB
Hood hinges	Multi-Purpose lubricant, Superlube ®GM P/N 12346241 (Canadian P/N 10953474) or equivalent
Door and seat hinges	Multi-Purpose lubricant, Superlube® GM P/N 12346241 (Canadian P/N 10953474) or equivalent
Outer tailgate handle pivot points, hinges, latch bolt and linkage	Multi-Purpose lubricant, Superlube® GM P/N 12346241 (Canadian P/N 10953474) or equivalent
Weatherstrip conditioning	Dielectric Silicone Grease GM P/N 12345579 (Canadian P/N 1974984) or equivalent
Weatherstrip squeaks	Synthetic Grease with Teflon, Superlube® GM P/N 12371287 (Canadian P/N 10953437) or equivalent

Chevrolet recommendations and specifications for oil and fluid for 2004 Silverado 2500 HD.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 2004 Chevrolet Silverado 2500 HD user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Chevrolet warranty policy for your region. In some regions DIY service may invalidate your warranty.

Maintenance Items

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Chevrolet Silverado 2500 HD service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 2004 Chevrolet Silverado 2500 HD you're not only saving money, but also also improving your technical skills and learning something new.

Chevrolet Silverado 2500 HD First generation first facelift model years

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2003
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2004

2004 Chevrolet Silverado 2500 HD First generation first facelift Fluid and Lubricant Specifications

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Conquer your fears and never give up!

Chevrolet Silverado 2500 HD First generation first facelift model years

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