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Can I Use 10w30 Instead of 5w20 – Which one can be a Better Option

Can I use 5w30 Instead of 5w20 Oil?

5w30 vs. 5w20 is a question that comes up often.

The answer to the question of whether you should use 5w20 or 5w30 motor oil depends on your vehicle, engine type, and driving conditions. Here’s what you need to know about this common auto maintenance topic.

“I have an older car with over 100k miles; should I switch from 5W-30 to 10W-30?”

If your vehicle has more than 100,000 miles (160,000 kilometers) under its belt and it was manufactured prior to 2001, then yes!

You can probably benefit from switching from a lighter weight synthetic like 0W-20 or even straight SAE 30 oil down to a heavier weight synthetic like 10W-40 or 20W-50 depending on manufacturer recommendation for your specific model year and make/model of the vehicle.


There are two reasons why using a heavier weight synthetic oil is advisable in older vehicles.

1) The internal engine components are thicker and do not get up to optimal operational temperatures as easily rendering the thinner weight oils ineffective at reducing friction.

2) Synthetic oils, both lighter & heavier weight can better handle high temperatures while resisting breakdown better than conventional petroleum-based motor oils which reduces oil consumption over time.

Can I use 5w20 Synthetic Instead of 5w30?


You may have heard that you can use 5w30 instead of the normal 20-grade oil, but is this really recommended?

The answer is no!

Although both oils are rated at a Winter Thickness Scale rating of 5 and come from similar viscosity levels. The thicker 30 weight (viscosity) would be better for your engine as it will go through less before reaching operating temperature which means more power output! So if their owner’s manual says to use higher-level thinning fluids don’t even hesitate; just do what they say because they know best when it comes down to these important things like cars after all they’re the ones who built it!

What Would Happen If You Put 5w30 Instead of 5w20?

It is not recommended to use 5W-30 instead of 5W-20 motor oil in your vehicle because it will have a negative effect on the engine.

While both oils are rated for cold weather, 5W-30 is thicker at 212 degrees Fahrenheit than 5W-20. This means that while there are no issues with engine corrosion or rusting during cold seasons, there are more issues when the engine heats up to normal operating temperature. If an oil’s viscosity index is too high, then it becomes unstable and may form deposits on the piston rings and injectors, which can lead to oil leaks. There is also a higher risk of ring sticking caused by excessive oil film buildup around the cylinder bore which can cause engine knocking or pinging.

This is because 5W-30 has a slightly higher viscosity rating than 5W-20 at the normal engine operating temperature, which means it takes longer for the oil to reach all areas of the engine and protect it from premature wear and tear. The faster the oil thins out, the less time it can provide proper lubrication to bearings and other important engine components that reduce friction during engine operation.

It is best to stick with using only motor oil graded as SAE 5W-20 in your vehicle if you want optimum performance. If you were unsure about what type of oil recommended by your car manufacturer was, we recommend consulting your owner’s manual or contacting them directly to check before trying anything else. You may also want to check with your local car repair shop on what they recommend for oil type based on the model of your vehicle.

Can I use 5w20 Instead of 5w30 Oil?

If you’re looking for a thinner oil, the recommended grade is 5W20 instead of 5W30. The cold temperature optimal thinning properties will help your engine run more efficiently and last longer in warm conditions but don’t use this type when it’s below freezing because there will be too much friction that could wear down parts quickly- eventually leading to problems such as performance issues or even breaking down altogether!

It’s best not only if we stick with manufacturer recommendations since they know what’s best based according to the requirements of the car.

What Will Happen If You Put 5w20 Instead of 5w30?

It is not a good idea, either. Because the viscosity grade of 5w30 is higher than that of 5w20. 5w20 is a lightweight oil meant to be used with new engines.

When choosing motor oil for your car, it’s important to select the weight (viscosity) that is best suited for the climate and operating conditions you typically experience. 5w30 oil is a good choice for most drivers, as it offers a good balance of lubrication and fuel economy. However, if you live in a hotter climate or drive in more extreme conditions, you may want to consider using 5w20 oil instead.

What Does SAE 5w-30 Actually Mean?

SAE 5-30 is the grade of oil used for all types of engines.

The frequency of use is dependent on the climate.

5w-30 engine oil is perfect for cars driven in cold climates or countries with varying levels of temperature. This is because this type of oil has the ability to flow over time and go over a wide range of temperatures say between -22°F and 95°F which means it can endure higher temperatures as well as low ones.

It’s also perfect during long drives where exposure to heat increases. It’s safe for personal cars, light-duty gasoline engines, light-duty diesel engines, specifically older versions that are yet to be updated.

5w-30 engine oil meets the American Petroleum Institute’s (API) SN requirements. It also won Mercedes Benz, Volkswagen, Porsche, and Ford approving its use.

It’s advisable to follow the recommendations of your vehicle manufacturer but 5w-30 is perfect for engines with high-temperature fluctuations (+/-95°F).

What Does SAE 5w-20 Mean?

5w-20 oil is a popular grade of motor oil that is well suited to colder areas. Because it’s less viscous, 5w20 is compatible with cold and arctic conditions because it has less friction and drag when flowing to deeper engine components. As the viscosity number rises, so does its power. The viscosity rises with each step up the number scale, therefore you’ll want this if your area’s temperatures reach -30 degrees Fahrenheit (-34 Celsius) or more frequently.


5w-20 delivers optimized fuel efficiency & performance in cold climates due to its lower viscosity which ignites easily even at subzero temps– making it suitable for cars, trucks, SUVs, light trucks! It is ideal for drivers living in colder areas or mountainous regions.

5w20 is a popular motor oil grade that is well suited to colder areas. The number before the “W” refers to the oil’s viscosity rating in winter (W), whereas the “20” after the “W” refers to the thickness of the oil in warmer weather.

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5w30 motor oils are a perfect choice for any vehicle because they can be used in most engines and survive extreme conditions. These viscosity ranges mean 5W-30 will perform its basic function – lubricating, Sealing & Protecting engine internals under all sorts of weather.

Yes, you can put 5w-30 in a car that calls for 5w-20. The viscosity of the oil will be a little thicker, but it will still work fine.

5w-20 and 5w-30 are both viscosities of motor oil. The number following the “w” indicates how thick the oil will be at zero degrees Celsius. A 5w oil will be thinner than a 10w oil at room temperature. Many carmakers recommend using a 5w-20 oil in summer weather, as it will run cooler than a thicker oil. Some drivers in colder climates prefer to use a 5w-30 oil year-round to help keep the engine warm.

In general, synthetic oil tends to be more expensive than regular oil per quart. However, it is worth noting that synthetic oil often lasts longer and provides better performance in terms of protecting the engine. As a result, drivers may find that they do not have to change their oil as often, which can offset the higher cost of synthetic oil.

The best kind of engine oil to use in your car will depend on the driver’s preference. For many, 5w-30 is the best option because it tends to be thicker. However, for others, this may not be enough so they opt for a 10w. It is important to consider that some cars require different viscosities which cannot be modified.

There is no definite answer when it comes to the question of 5w-30 or 10w-40. The best option for each driver will depend on their individual needs and preferences. That said, 10w-40 is generally a thicker oil, which may provide better protection in colder climates. 5w-30 is thinner and may run cooler in summer weather. drivers should consult their car’s owner’s manual to determine the viscosity of oil recommended for their vehicle.

Yes, 5w-20 and 5w-30 are interchangeable in most cases. Drivers should consult their car’s owner’s manual to determine the viscosity of oil recommended for their vehicle.

For the most part, OEMs such as Ford, Honda, Chrysler, and others recommend 5W-20 and 0W-20 motor oil for most vehicles.

With the Mobil 1 Extended Performance High Mileage 5W-20 advanced full synthetic motor oil, you can drive up to 20k miles between changes! This means that your car will not need as often of an overhaul. Not only does it protect critical engine parts but also helps extend engine life by keeping them clean and moving smoothly through their jobs.

The mileage that 5w30 oil lasts will depend on the brand, type and condition of your vehicle. On average it can last between 3000-3500 miles but some high quality brands have been known to go up 75000 -10k!


It’s important to make sure your car is running at its best. We want you and your vehicle to be safe on the road, so we recommend checking with an expert about what oil will work for your needs before making any changes. No matter how old or new your engine type may be, there are always ways that you can tweak it to ensure that both of you stay healthy!