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What kind of oil for 350 small block?

When it comes to maintaining your 350 small block engine, selecting the right oil is crucial. The type of oil you use can have a significant impact on your engine's performance, longevity, and overall health. In this article, we'll provide a detailed guide on the best oil for your 350 small block engine.


Recommended Oil Type


For a 350 small block engine, the recommended oil type is a high-quality, synthetic-blend or full-synthetic motor oil with a viscosity rating of 10W-30 or 5W-30. These oil types are designed to provide superior protection and performance for small block engines, ensuring optimal lubrication and reducing wear and tear.


Reasons for the Recommendation


The 350 small block engine is a popular and well-known engine design that has been used in a variety of vehicles, including Chevrolet Corvettes, Camaros, and Impalas. This engine is known for its reliability and performance, but it also requires specific maintenance and care to keep it running at its best. The recommended oil type for the 350 small block engine provides the following benefits:



  • Improved Lubrication: Synthetic-blend or full-synthetic oils have a higher viscosity index, which means they maintain their lubricating properties better under high temperatures and pressures, common in small block engines.

  • Enhanced Wear Protection: These oil types contain additives that help reduce friction and wear on engine components, extending the engine's lifespan.

  • Better Fuel Efficiency: The lower viscosity of 10W-30 or 5W-30 oils can improve fuel efficiency, as they require less energy to circulate through the engine.

  • Reduced Sludge and Deposits: Synthetic-based oils are less prone to forming sludge and deposits, which can clog oil passages and reduce engine performance.


By using the recommended oil type, you can help ensure your 350 small block engine runs smoothly, efficiently, and with reduced wear and tear over time.


Oil Change Interval


It's important to follow the manufacturer's recommended oil change interval for your 350 small block engine. Typically, this is around every 5,000 to 7,500 miles or every 6 to 12 months, whichever comes first. Changing your oil at the recommended intervals helps maintain the engine's health and prevent premature wear or damage.


Remember, regular maintenance and using the right oil type are essential for keeping your 350 small block engine running at its best. By following these guidelines, you can help ensure your engine provides reliable performance for years to come.

Can I use 15W40 instead of 10w30?


In hot climates, where engines can reach high temperatures, 15W40 oil's superior high-temperature protection would be advantageous. Conversely, in cold climates, 10W-30 oil's improved cold-start performance would be beneficial.



What kind of oil does a classic 350 take?


Decoding Royal Enfield Engine Models and Oil Specifications

Motorcycle ModelOil CapacityGulf Product
Royal Enfield Classic/350/5002.5 LitersGulf PowerTrac 4T 15W-50
Royal Enfield Continental GT2.5 LitersGulf PowerTrac 4T 15W-50
Royal Enfield Thunderbird 350/5002.5 LitersGulf PowerTrac 4T 15W-50



What grade oil for standard 350?


2) It seems 15W-50 Motul 7100 or 300 V is generally the best.



What happens if I use 5w30 instead of 10W30?


A common question is whether it's safe to use 10W-30 instead of 5W-30 oil, for example. While it's best to use what's recommended in your owner's manual, inadvertently using a viscosity one grade higher or lower than what's recommended generally poses no long-term harm.



What type of oil does a Ford 350 take?


Engine Oil
10W-30 (Above -18°C) - Manufacturer recommends 10W-30 for normal usage and 5W-40 for severe operations.



What oil does a 350 small block take?


Typical grades of oil that Chevy 350 owners use are 10W-30 or 10W-40. If you're running your Chevy 350 in an area with harsh winters, you may want to use an oil with a lower viscosity rating in cold conditions or check out an engine block heater.



Is 5W-30 oil thick or thin?


Let's look at 5W-20 vs 5W-30 again. The 5W-20 will remain a little thinner at operating temperature, as indicated by its lower “20” number, while 5W-30 will provide a slightly thicker lubricating film.



What oil goes into a 350 small block?


Typical grades of oil that Chevy 350 owners use are 10W-30 or 10W-40. If you're running your Chevy 350 in an area with harsh winters, you may want to use an oil with a lower viscosity rating in cold conditions or check out an engine block heater.



What type of oil does a 5.7 Chevy take?


5W-30 (All TEMPS) - SAE 5W-30 is preferred. Capacity: 5.1 quarts (with filter). After refill check oil level.


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.