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What kind of diff fluid does a 2017 Silverado take?


The 2017 Chevrolet Silverado is a reliable and powerful truck, but like any vehicle, it requires proper maintenance to keep it running smoothly. One critical aspect of maintenance is ensuring the differential fluid is appropriate and up to date. In this article, we’ll explore the type of differential fluid your 2017 Silverado needs and why it’s essential for the health of your vehicle.


Understanding Differential Fluid


Differential fluid, also known as gear oil, is a lubricant designed to reduce friction and heat in the differential—a critical component that allows your truck’s wheels to rotate at different speeds. This is especially important when turning corners or driving on uneven terrain. Using the correct type of differential fluid ensures optimal performance and prevents premature wear and tear.


The Recommended Differential Fluid for a 2017 Silverado


For the 2017 Chevrolet Silverado, the type of differential fluid you need depends on whether your truck is equipped with a standard rear differential or an optional locking rear differential (G80). Here’s a breakdown:



  • Standard Rear Differential: Use SAE 75W-90 synthetic gear oil that meets GM specification 9986115.

  • Locking Rear Differential (G80): Use SAE 75W-90 synthetic gear oil that meets GM specification 9986115. Additionally, ensure the fluid is compatible with limited-slip differentials, as the G80 requires this feature.


It’s always a good idea to consult your owner’s manual or a trusted mechanic to confirm the exact specifications for your truck. Using the wrong fluid can lead to reduced performance and potential damage to the differential.


How to Check and Replace Differential Fluid


Maintaining your differential fluid is a straightforward process, but it’s essential to follow the correct steps to ensure your truck stays in top condition. Here’s how you can check and replace the fluid:



  1. Park your truck on a level surface and engage the parking brake.

  2. Locate the differential housing under the rear of the truck.

  3. Remove the fill plug using the appropriate tool (usually a ratchet or wrench).

  4. Check the fluid level by inserting your finger into the fill hole. The fluid should be level with the bottom of the hole.

  5. If the fluid is low, top it off with the recommended gear oil.

  6. If replacing the fluid, drain the old fluid by removing the drain plug, then refill with fresh fluid to the correct level.

  7. Reinstall the fill and drain plugs securely.


Regularly checking and replacing your differential fluid can prevent costly repairs down the road and ensure your Silverado performs at its best.


Why Proper Maintenance Matters


Neglecting differential fluid maintenance can lead to several issues, including increased friction, overheating, and damage to the gears. Over time, contaminated or degraded fluid loses its ability to lubricate effectively, which can result in expensive repairs. By using the correct fluid and following a regular maintenance schedule, you can extend the life of your truck’s differential and enjoy a smoother driving experience.


Conclusion


The 2017 Chevrolet Silverado requires SAE 75W-90 synthetic gear oil that meets GM specifications for both standard and locking rear differentials. Proper maintenance of your differential fluid is crucial for the longevity and performance of your truck. If you’re unsure about the process or need assistance, don’t hesitate to visit a trusted auto repair shop like Kevin’s Autos for professional service. Keeping your truck in top shape has never been easier!


Frequently Asked Questions

Can I use 75w90 gear oil instead of 80w90?


When run under real-world line-haul conditions, the use of 75W-90 can improve the efficiency of a Class 8 axle by an average of 0.5% over an axle using 80W-90. Considering that axles themselves are 95% efficient, a gain of 0.5% is significant.



What kind of transmission fluid does a 2017 Chevy Silverado 1500 5.3 take?


General Motors recommends Dexron-VI ATF transmission fluid for use in all Chevy Silverado 1500 automatic transmissions.



How much rear differential fluid does a 2017 Chevy Silverado 2500 hold?


6.3 pints
Differential Lubricant: Rear
Capacity: 11.5 RG Rear 6.3 pints.



What happens if you never change differential fluid?


Most differentials need a fluid change at about 50,000 miles. If left too long or if the fluid starts to run low, the differential will become noisy and can eventually fail. If that happens, the gears can seize, locking up the rear wheels and potentially causing a lot of damage or even an accident.



What fluid should I put in my rear differential?


Think engine oil but thicker; it's similar to fluid that's used to lubricate manual transmission gears. There are two basic types of differential fluid: Mineral oil, which is a natural, crude oil-based fluid. Synthetic differential fluid, which is created with chemicals and can be fine-tuned for optimal performance.



When should I change the differential fluid on my 2017 Silverado?


Differential Fluid usually lasts longer than most other fluids. The life of differential fluid is variable but a major difference between for example oil and differential fluid, is differential fluid usually is not filtered. Usually, differential fluid is changed after every 30k to 60k miles driven.



What kind of rear differential fluid does a 2018 Chevy Silverado 1500 take?


Penzoil 80W90 conventional gear Oil.



How much rear differential fluid does a 2007 Chevy Silverado 1500 hold?


2.2 quarts (rear with 8.6” diff.)



How often do you change transmission fluid on a 2017 Chevy Silverado?


Essential Maintenance Milestones:
Transmission Fluid Change Silverado 1500: Keeping up with transmission fluid changes, generally every 45,000 to 60,000 miles, is vital for the smooth operation of your Silverado 1500.



How many quarts does a Silverado differential take?


Differential Oil Change
2.75 quarts (rear with 9.5” and 10.5” diff.)


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.