Top 5 Best Engine Oil For 2015 – 2021 Chevy Suburban [Chevrolet Recommended] | Car Fluid Guide (2024)

We understand how crucial it is to use the correct engine oil for your vehicle’s health and longevity.

Hence, we’ve researched, reviewed, and compiled a list of the top five engine oils that are perfectly suited for your 2015-2021 Chevrolet Suburban.

Whether you’re looking for synthetic oil, high-mileage oil, or a blend, we’ve got you covered.

So, buckle up as we dive deep into the world of engine oils, providing you with the insights you need to make an informed decision for your Suburban’s engine.

The recommended oil type for the 2015 – 2021 Chevrolet Suburban is an SAE full synthetic at a viscosity of 0W-20.

The recommended engine oil for the 2015 – 2021 Chevrolet Suburban is a Castrol 0W-20 Full Synthetic which meets the requirements of ILSAC GF-5 API, SN, SM, SL.

• Chevrolet Suburban’s 2015, 2016, 2017, 2018, 2019 and 2021 3.0-liter engine has an engine oil capacity of 7 quarts (6.8 liters) of synthetic 0W-20 motor oil.
• The 5.3-liter2015, 2016, 2017, 2018, 2019 and 2021Chevrolet Suburban has an engine oil capacity of 8.1 quarts (7.6 liters).
• The 6.2 liter2015, 2016, 2017, 2018, 2019 and 2021Chevy Suburban has an engine oil capacity of 8.02 quarts (7.6 liters).

The oil change frequency for a Chevrolet Suburban, particularly models from 2015 to 2021, is generally recommended every 7,500 miles or at least twice per year.

This recommendation assumes that the vehicle is using synthetic oil, which can typically last longer between changes compared to conventional oil.

1. Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil

Valvoline Advanced Full Synthetic SAE 0W-20 Motor Oil is designed to offer optimal engine protection.

Its full synthetic formula provides superior high and low-temperature protection compared to conventional motor oils.

It helps minimize engine wear and keeps the engine components running smoothly.

Another key benefit of this oil is its potential to improve fuel efficiency. The low viscosity of the 0W-20 grade helps reduce friction within the engine, which can lead to better fuel economy.

This motor oil excels at keeping your engine clean. It’s designed to resist oil thickening by providing enhanced protection against the formation of sludge and deposits.

• Amazing engine protection​
• Incredible high/low temperature protection
• American made

• Some customers have complaint that the motor oil smells like burnt oil
• Container is prone to rupturing

2. Castrol 0W-20 Full Synthetic Motor Oil

The Castrol 0W-20 Full Synthetic Motor Oil is engineered to offer top-notch engine protection.

Its full synthetic formula ensures high and low-temperature protection superior to conventional motor oils.

It aids in reducing engine wear and ensures smooth operation of all engine components.

One of the key benefits of this oil is its ability to enhance fuel efficiency. The low viscosity of the 0W-20 grade helps minimize friction within the engine, potentially leading to an improvement in fuel economy.

This motor oil excels in maintaining engine cleanliness. It’s designed to resist oil thickening by providing enhanced protection against the formation of sludge and deposits.

• Chevrolet Approved For Suburban
• Meets The Requirements of ILSAC GF-5 and other
• Protects the engine for 20,000 miles

• Pricey

3. Valvoline High Mileage SAE 0W-20 Synthetic Blend Motor Oil​

Valvoline High Mileage SAE 0W-20 Synthetic Blend Motor Oil is formulated to offer exceptional engine protection.

Its synthetic blend formula provides superior high and low-temperature protection when compared to conventional motor oils, helping minimize engine wear and keep the engine components operating smoothly.

This oil offers benefits in terms of fuel efficiency.

The low viscosity of the 0W-20 grade helps reduce friction within the engine, potentially leading to better fuel economy.

Valvoline High Mileage Synthetic Blend Motor Oil excels at keeping your engine clean.

It’s designed to resist oil thickening by providing enhanced protection against the formation of sludge and deposits.

• Great for engines with over 75,000 miles
• Meets industry standards API SP/SN PLUS/SN
• ILSAC GF-6

• The lid cap is not very well designed and might break in transport
• Some users report this motor oil makes their engine noisier.

4. Mobil 0W-20 Full Synthetic Motor Oil

The Mobil 0W-20 Full Synthetic Motor Oil is formulated to offer superior engine protection.

Its full synthetic formulation provides enhanced high and low-temperature protection compared to conventional motor oils, helping to minimize engine wear and maintain the smooth operation of engine components. This oil also stands out for its fuel efficiency benefits.

The low viscosity of the 0W-20 grade helps to reduce friction within the engine, potentially leading to better fuel economy. Mobil 0W-20 Full Synthetic Motor Oil excels at keeping your engine clean.

It’s designed to resist oil thickening by providing superior protection against the formation of sludge and deposits. This motor oil performs exceptionally well under a wide range of conditions.

Whether you’re dealing with extreme temperatures or heavy-duty driving, this oil is engineered to handle the stress and keep your engine running at peak performance.

• API SN, SM, SL
• 1.5x longer protection than other oils
• Doesn't do damage to the engine seals

• Pricey

5. Quaker State Full Synthetic 0W-20 Motor Oil

The Quaker State Full Synthetic 0W-20 Motor Oil is formulated to offer top-notch engine protection.

Its full synthetic formula ensures high and low-temperature protection superior to conventional motor oils.

It aids in reducing engine wear and ensures smooth operation of all engine components. Quaker State Full Synthetic 0W-20 Motor Oil also shines in the realm of fuel efficiency.

The low viscosity of the 0W-20 grade helps minimize friction within the engine, potentially leading to an improvement in fuel economy. Quaker State Full Synthetic 0W-20 Motor Oil excels in maintaining engine cleanliness.

It’s designed to resist oil thickening by providing enhanced protection against the formation of sludge and deposits.

• Meets the API SN Plus classification protecting engines from LSPI
• Meets industry requirements of ILSAC GF-6A
• Provides protection in extreme temperatures

• The packaging can sometimes get damaged during delivery

Required Materials:

1. Oil filter
2. 7 – 8.1 quarts of 0W-20 motor oil
3. Jack and Jack stands
4. 15-millimeter socket
5. Oil filter wrench
6. Oil drain pan
7. Funnel
8. Shop rags or towels
9. Gloves
10. Safety glasses

Performing the oil change:

1. Safely Elevate Your Vehicle: Start by parking your Chevrolet Suburban on a level surface. Use a jack to elevate the front of your vehicle and secure it with jack stands or use ramps if available.

2. Locate the Oil Drain Plug: Put on your safety glasses and disposable gloves, then get under your vehicle and locate the oil drain plug.

3. Drain the Oil: Place your drain pan under the oil drain plug. Using your socket set, carefully loosen the drain plug and allow the old oil to flow out into the drain pan. Remember, the oil may be hot, so avoid direct contact.

4. Remove the Old Oil Filter: Once the oil is drained, locate and remove the old oil filter with your oil filter wrench. Make sure your drain pan is underneath because some oil will likely spill out.

5. Install the New Oil Filter: Before installing the new filter, apply a small amount of new oil to the gasket on the top of the filter. This helps ensure a proper seal. Screw the new filter into place as tightly as you can using your hand.

6. Replace the Oil Drain Plug: After the oil has completely drained and the new filter is installed, replace the oil drain plug using your socket set. Be careful not to overtighten.

7. Add New Oil: Move to the top of your engine and remove the oil filler cap. Insert your funnel and pour in the correct quantity of new oil as specified in your owner’s manual.

8. Check Oil Level: After adding the new oil, pull out the dipstick, wipe it clean, then reinsert it fully. Pull it out again and ensure the oil level is within the safe operating range.

9. Final Checks: Replace the oil filler cap. Start your engine and let it run for a minute. Check underneath your vehicle for any leaks. If there are no leaks, turn off your engine.

10. Dispose of Old Oil Properly: Finally, ensure you dispose of your old oil properly. Many auto parts stores and service stations will accept used motor oil for recycling.

Based on various industry recommendations, Full Synthetic 0W-20 Motor Oil is commonly suggested for a 2021 Chevrolet Suburban. Notably, both FRAM and AMSOIL, renowned manufacturers in the automobile industry, recommend using a 0W-20 synthetic motor oil for this particular model.

0W-20 oil is a type of motor oil that is commonly used in various vehicles for engine lubrication and protection. It is a low-viscosity, full synthetic oil designed to flow quickly at cold temperatures. This fast flow at startup helps the oil reach critical engine parts more rapidly, reducing wear and tear.

And that was the list of the best five engine oils for 2015 – 2021 Chevrolet Suburban.

Make sure that you change your engine oil on time.