What Is The Difference Between 10W-30 And SAE 30?

Last Updated on January 30, 2023 by Leepu Da Maxim

The Difference between SAE 30 vs. 10w30 is simple: SAE 30 has more viscosity in cold weather, so it flows better when it gets colder outside, whereas 10w30 has less density, so it flows easier even when it’s cold out.

Key Takeaways

  • If you live somewhere where winter isn’t an issue then 20 will be fine for you
  • If you want to keep your engine running in the winter then SAE 30 will be the best option for you
  • Both SAE 30 and 10w30 are considered “winter” oils because they have a higher viscosity than SAE 20
  • 10W-30 is used in modern engines, while SAE 30 is used in older engines

Features Of 10w30

Features Of 10w30

1. 10w30 oil is a type of motor oil that meets the requirements for service classification SAE 10W-30

2. This class of engine oil was created to provide year-round protection for engines in cold climates

3. The “10” refers to the viscosity rating at 0 degrees Fahrenheit, while the “30” refers to its viscosity rating at 210 degrees Fahrenheit 

4. Engine oils with higher ratings are typically used during hot weather and may not be appropriate for use in colder temperatures

5. To classify as an SAE 10w-30 grade, motor oil must have a viscosity index (VI) between 137 and 150

6. Motor oils with lower VIs will thicken when they get colder than 32 degrees Fahrenheit; these types of oils should only be used if you’re driving your car on short trips or during periods where it’s above 50 degrees outside


1. 10w30 is a type of motor oil that is designed for modern engines 

2. It’s also known as “straight-weight” because it doesn’t have any additives to make the oil thinner 

3. It can be used in all types of weather, including cold and hot conditions 

4. The viscosity of 10w30 makes it a good choice for many different vehicles, like cars, motorcycles, and trucks 

5. Compared to 5W40 or 20W50 oils, 10w30 has more detergents which protect your engine from corrosion and wear better during colder months

6. Overall, 10w30 is an excellent choice for most drivers looking for high-quality motor oil at an affordable price point!


1. 10w30 is not a high-performance motor oil

2. It does not offer increased fuel efficiency in cold weather

3. It offers reduced protection against wear and corrosion

4. 10w30 has fewer detergent additives than other oils, which can lead to increased emissions

5. The viscosity of this oil will change with temperature changes, leading to decreased engine performance 

6. There are better options available for your vehicle – consult your owner’s manual or talk to a mechanic about the best type of motor oil for your car!

Features Of SAE30

Features Of SAE30

1. SAE30 has a higher viscosity than other grades of engine oil

2. SAE30 is designed to resist oxidation and thermal breakdown

3. The best use for SAE30 is in high-performance racing engines or when a machine requires a heavier weight of oil for cold weather operation 

4. It’s important to change your car’s oil every 3,000 miles or at least once per year

5. You can find out what type of engine you have by checking the owner’s manual that came with your car purchase 

6. If you’re not sure how often you should be changing your oil, ask the professionals at our service center! They’ll get it done right away!


1. SAE30 is a type of oil that helps reduce engine wear and tear

2. This type of oil also increases fuel economy and reduces emissions

3. SAE30 is the best option for colder climates, such as in Canada or Alaska

4. It’s recommended to change your car’s oil every 3-6 months, depending on how often you drive it

5. The most cost-effective way to purchase this type of oil is through Costco because they offer a discounted price 

6. If you’re looking for an alternative to purchasing from Costco, then use Groupon Coupons to get deals at other stores like Walmart or Home Depot


1. SAE30 is more expensive than other grades

2. The viscosity of SAE 30 oil can be too high for some engines 

3. If the engine is not warm enough, it could take up to 15 minutes before the oil reaches operating temperature and starts flowing properly

4. Higher viscosity means a higher risk of shear forces that cause wear on engine components

5. One disadvantage with using higher-viscosity oils is that they are slower to reach their maximum pressure level when cold, so they may not provide adequate lubrication in colder climates or during cold start-ups

6. Using an improper grade can result in increased wear on your engine and increase fuel consumption due to poor efficiency levels

What Is SAE 30?

SAE 30 is engine oil that contains a higher viscosity than other grades. SAE30 is designed to resist oxidation and thermal breakdown, making it the perfect choice for high-performance engines or when a machine requires a heavier oil weight for cold weather operation. Car owners should change their car’s oil every 3000 miles or at least once per year, whichever comes first but make sure they use the appropriate grade based on what type of engine you have. If you don’t know how often to change your oil, ask our professional staff in-service center about changing your car’s fluids!

How Often Should I Change My Car Fluids?

It depends on the type of fluid you are changing! Most vehicles require different types of fluids that need to be changed every few months or years – take a look in your owner’s manual and see which ones apply to your car!

What Is Proper Maintenance For My Engine?

Proper maintenance includes replacing old parts with new, regular inspections such as changing out filters, regularly checking tire pressure, and keeping an eye on emissions from your tailpipe.