Owners of an old Silverado Chevy may be very proud of their car. This is a great car with a reliable and powerful 5.3 Vortec engine. However, one of the most important factors to keep your truck in top condition is obviously engine oil. There is a special formula for oil that you need to take care of the needs of your engine’s 75,000+ mileage – it has been specifically formulated and made just for 5.3 Vortec engines.
The high-mileage 5.3 Vortec uses SAE 5W-30 like Royal Purple HMX 5W-30 High Mileage Synthetic Motor Oil on Your truck. The recommendation from the manufacturer is to use synthetic oils, which are newer and engineered with greater wear protection than regular conventional options available today. They only need to change every 7500 instead 3 – 5000 mile range (depending). I highly recommend checking your motor’s oil level at least once per month because it could be too low.
We base our reviews on a review of what customers have said, users online feedback, and car mechanic experience which give unique and accurate information including both the top 6 best oils for 2022 as well as technical details.
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- Better wear protection
- Increased protection against LSPI
- Better protection for vehicle exhaust emissions equipment
- Superior corrosion protection
- Value for money: 🔥🔥🔥🔥🔥
- Advanced Full synthetic formula
- Friction prevents properties
- Precise balance of performance additives
- Formulated to maintain engine seal performance
- Friction prevents properties
- Value for money: 🔥🔥🔥🔥
- Superior oil burn off protection versus leading conventional oils
- Superior detergency that helps prevent deposit build up
- Advanced additives that help prevent engine wear
- Seal conditioners help reduce leaks
- Exceeds ILSAC GF-5, API SN
- Value for money: 🔥🔥🔥🔥
- Improves oil film strength by 30% and reduces power robbing friction
- Reduces leaks, oil-burnoff and power robbing deposits
- 10X better high temperature performance
- Phosphorus Replacement Technology
- Improve fuel economy (0W grades)
- Value for money: 🔥🔥🔥🔥
- Formulated to deliver less oil burn off than high mileage motor oils made from crude oil
- Keeps pistons up to 45% cleaner than the toughest industry standard
- Pennzoil's patented gas-to-liquid PurePlus Technology
- Designed for for vehicles with over 75,000 miles
- Based on Sequence IVA wear test using SAE 5W-30
- Value for money: 🔥🔥🔥🔥
- Comes with the MaxLife 10W-40 technology
- High-quality conventional base stocks
- Can cover almost over 75000 miles
- Contains extra wear protection
- Value for money: 🔥🔥🔥🔥
Overall #1 Rated Pick
Royal Purple HMX 5W-30 High Mileage Synthetic Motor Oil
If you’ve got a high mileage engine, then this oil is one of the best for supporting your 5.3 Vortec engine and meeting the Silverado’s oil viscosity requirement. It restores performance and minimizes wear in older engines for even better maintenance over time so it doesn’t require as much intensive care
Royal Purple High Mileage Synthetic Oil has engineered a synthetic engine oil called High Mileage for your Vortec 5.3 with additives that help maintain your engine performance. Â This creates an optimal environment for peak performance of the engine, even on heavy mileage vehicles. Royal Purple Synthetic Oil offers advanced additive technology and benefits the performance of gasoline/diesel engines.
Built with a proprietary additive from Royal Purple and robust zinc/phosphorus anti-wear compounds, Royal Purple SAE 5W-30 is specially formulated to resist wear. The oil is also made to help engines resist oxidation.
How to Choose Best Motor Oil for High Mileage Chevy Silverado 5.3 Vortec
Engine oil is key for high-mileage engines. The right type of engine oil can go a long way to preserving your engine. This particular type of oil is best for prolonged and daily use, though it might cost more than conventional oils.
Some tips below help you to buy the best engine oil for high mileage Silverado 5.3 Vortec.
- There are three types of motor oils which differ in a significant way. Fully synthetic, synthetic blended and conventional. High mileage automobiles cannot use conventional oil because they stop performing well over time.
- The efficacy of the oil depends on how well it holds up against adverse conditions, and this is specifically related to whether it operates in hot or cold climates. From what we’ve seen so far, a 5W-30 rated oil would be best for a high mileage system since its strength lets it adequately do battle while still meeting standards.
- Regular oil contains chemical treatments as well as remedies for any potential damage. But a specialized formula requires special attention to the ingredients list and each one’s corresponding function.
- A bottle of oil is likely to draw the least attention for most customers. But the reliable container is one basic criterion for ensuring easy handling. Check the cap thoroughly to skip leakage issues. Don’t forget the handle in order to encourage simple pouring and comfortable carriage.
- The manufacturer provides a manual for your vehicle. It is important to follow the instructions carefully to ensure your car is functioning properly. When purchasing new oil, look for the closest option that matches your car’s make and model in order. A plug-in fluid may work better immediately
What is 5W-30 Oils?
Choosing the perfect oil for your vehicle can be a challenge because it’s dependent on temperature. 5w30 is common and well-suited to cold and hot temperatures, making it a popular choice among consumers.
5w30 is a light-duty motor oil that is popular among people who drive petrol or diesel cars. The viscosity changes depending on the grade, with 5 being the least viscous and 30 being the most viscous.
‘W’ stands for ‘winter’, the year preceding it indicates oil’s viscosity at low temperatures (hence the letter W), and the number after it indicates its viscosity at a higher temperature, when your engine is running.
What are the differences between a 5w30 and other oils?
Motor oil with a 5w30 viscosity grade is less viscous (less thick) at low temperatures. Motor oil with a 10w30 viscosity grade is more viscous than 5w50 at high temperatures.
To find the right oil for your vehicle, there are two things you need to know:
- the viscosity
- the manufacturing specification requirements.
The products shown on this page are all 5W-30 viscosity and exhibit the manufacturer specifications.
5w30 motor oil is versatile because it can work on a wide variety of engines running at different temperatures. For example, 5w30 is often the recommended mud for light petrol or diesel engines because it doesn’t break down as fast when running under hot engine conditions but flows more easily in cold weather.
Best Oil for High Mileage 5.3 Vortec
The top best product [hide]
Royal Purple HMX 5W-30 High Mileage Synthetic Motor Oil
Mobil 1 High Mileage Full Synthetic Motor Oil 5W-30
Castrol GTX High Mileage 5W-30 Motor Oil
Castrol EDGE High Mileage 5W-30
Pennzoil Platinum High Mileage Full Synthetic 5W-30 Motor Oil for Vehicles Over 75K Miles
Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend Motor
How Often to Change Oil on Chevy Silverado?
It is also important to know how frequently the oil for a Chevy Silverado needs to be changed. Chevrolet recommends you change your Silverado’s engine oil every 7,500 miles or once per year.
Consider also how often your oil supply needs to be replenished. Obviously this depends upon which type of motor oil you are using – some engine oils last 5,000 miles before an overhaul is necessary; other types of engine oils typically work well for 10-12,000 miles before it’s time to change it again.
How Much Does Chevy Silverado 5.3L Vortec?
You might also be interested to know how much oil you will need in order to fill up the engine of your Silverado. In the case of the 2019 Silverado, 6.02 US quarts of engine oil are needed. This number will vary slightly depending on model – for example, the 2018 and 2015 models require 8 US quarts of oil; 2006-2013 models need between 5.7 to 6.02 US quarts of oil.
Chevy Silverado 5.3L Vortec Oil Changing
Changing your oil is easier than you think, but there are some steps to stay organized and avoid making a mess after.
- Make sure to read the vehicle manual ahead of time so you know what is required.
- Allow the engine to cool for several minutes before attempting to start it. Disable any starter function that could re-engage if triggered by an off switch.
- To access an engine oil drain plug, you will need to jack the car up and securely stabilize it against jacks or ramps.
- Locate the oil filter in the engine. Place a drain pan under it to collect any spilled oil.
- Use a wrench appropriate for your vehicle’s size and loosen the fitting. Move in the counterclockwise direction to remove it.
- The filer seal may have broken, allowing oil to drip. Leave the assembly alone until all of the oil has dripped out.
- To keep from damaging the engine, there are a few procedures to follow when removing/installing. Simply unscrew out the old filter until it can be seen and use a damp cloth on this location as well.
- Now, put a drain pan right below the drain plug. Loosen the plug with a 15mm wrench.
- Take out the old oil from the engine and replace it with fresh, high-mileage fluid.
- To keep your engine in top shape, make sure to clean the threads on all plug-threaded instruments. Make a seal bead by applying some petroleum jelly or silicone grease before you install plugs and cylinder head plugs.
- Replace the O-ring with a new one made of rubber. Gently coat it with clean oil to lubricate it.
- Connect the new filter to the assembly using your wrench. Turn the connector clockwise.
- Do not over tighten the oil cap, just use your hand.
- Open the cap of the engine mechanism to access the fuel tank. Add a funnel to help fill the engine with oil.
Conclusion
For optimum performance, your engine needs the right maintenance in order to provide peak performance. And that’s why we listed the top 6 best engine oil for high mileage 5.3 Vortec!
The best automatic transmission fluid to use if you want your car to last is high-quality oil. In order to get the best performance from your motor, it is important to make sure you are using the correct type of oil. Ensure that you use the correct type of motor oil if your vehicle has gone over 75,000 miles.
