What does 5W-20 mean?

5W20 oil is primarily a winter viscosity grade oil. The number immediately before the 'W' represents the oil viscosity at 0°F. The lower this number is, the better it will perform at low temperatures. 5W is a low viscosity rating that provides better engine performance and lubrication during winters.
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Is it OK to use 5w30 instead of 5w20?

While both 5W20 and 5W30 motor oils are suitable for high mileage engines, the best viscosity type for your vehicle depends on how the manufacturer designed the engine. Using 5W30 when it is advised that you use 5W20 can result in your vehicle not getting good fuel economy.
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Is there a big difference between 5w20 and 5w30?

A.

When it comes to their higher operating temperature performance, 5W30 motor oil performs slightly better than 5W-20 and is a thicker oil than its counterpart. 5W30 motor oil would be more robust and not break down very easily at a higher temperature.
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Can I use 10W 30 instead of 5w20?

Notwithstanding the recommendations of the car manufacturer, mixing 10w30 and 5w20 will not cause any sort of harm to the engine. However, a few drivers claim that it is safer to combine two multi-grade or straight weight oils, rather than mixing multi-grade with straight weight oils.
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Is 5w20 good for winter?

5W20 motor oil is another low-temperature grade typically recommended for winter use, with a 10W-30 as an alternative for higher temperatures. This oil type is common because it provides the best fuel economy, saves fuel consumption, and has fewer exhaust emissions.
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5w20 or 5w30? Which do I run and why. Is 5w20 a hoax for fuel milage?



Is 5W20 oil good for summer?

Is 5W20 Good In Hot Weather? As a general rule, 5W-20 oil offers a superior viscosity index, as well as a broader temperature range when compared with it. You can enjoy even greater protection by having 5W 30 oil in colder conditions and hotter ones. Those living in colder, wet weather ought to apply 5W-20 oil.
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Why can't you go back to regular oil after synthetic?

Myth: Once you switch to synthetic oil, you can never switch back. This is one of the most persistent myths about synthetic oil—and completely untrue. You can switch back and forth at any time. In fact, synthetic blends are simply a mixture of synthetic and conventional oils.
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What happens if I put 10w40 instead of 5w20?

Lose a little gas. mileage and lubrication is not as good plus it puts more strain on the oil pump. Never go thicker than a 5w30 and that would be more for an older higher mileage engine in warmer climates. So go change it back to 5w20.
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What happens if you put the wrong kind of oil in your car?

You might notice a few oil spot in your garage or under your car because using the wrong oil can lead to leaks, or you might become aware of a burning smell while driving. If the oil isn't working as it should engine parts might not be lubricated well enough and cause friction, which can burn the oil.
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What oil can I substitute for 5W-20?

As 5W-20 is a low viscosity oil, it's best suited for cars that drive a lot in low temperatures and colder climates. It's ideally recommended for light-duty petrol and gasoline engines, and can help with engine deposits and wear and tear problems. For a higher temperature climate, you may use 10W-30 as an alternative.
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What happens if you mix 5w20 with 5w30?

Yes, you can mix 5W20 and 5W30 oil. However, your engine MUST support it. Both oils should be of the same brand to prevent engine damage and should also be of a similar API service level.
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Can I mix synthetic and regular oil?

So, in the end, conventional and synthetic oils are comprised of the same, compatible components – it's just that the components in synthetics are much higher quality. While you can safely mix synthetic and conventional oils, you're doing nothing more than diluting the performance of the synthetic oil.
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How do you know if your engine oil is bad?

6 Signs Your Car's Oil Needs Changing
  1. Check Engine or Oil Change Light. The most obvious alert that there's an issue with your oil will come from the car itself. ...
  2. Engine Noise and Knocking. ...
  3. Dark, Dirty Oil. ...
  4. Oil Smell Inside the Car. ...
  5. Exhaust Smoke. ...
  6. Excessive Mileage. ...
  7. Change Oil Promptly.
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Does brand of oil matter?

Less expensive motor oil is less expensive due to the lower quality of its chemical makeup. Off-brand oils are full of harmful fillers that will end up doing more harm than good in the long run. That's why it's important to choose a high-quality motor oil for top engine performance.
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Will thicker oil damage my engine?

Using oil that is thicker than recommended may lead to a decrease in fuel economy, a higher load on your engine, and even a shorter life for your engine. Conversely, using thinner, lighter-weight oil than recommended can cause excessive wear and shorter life.
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Is Thicker oil better for high mileage cars?

The slightly thicker oil film from the heavier base weight oil - 10W - can help protect worn engine bearings as well. As long as you're not hearing knocking or serious mechanical noises from the engine, the heavier oil should buy you many more miles of service from your vehicle.
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Should you put thicker oil in an older engine?

A: Yes. This is a practical method to improve oil pressure in an older, high-mileage engine. The slightly thicker oil film from the heavier base weight oil — 10W — can help protect worn engine bearings as well.
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What is the disadvantage of synthetic oil?

Probably the most glaring downside of synthetic oil is the cost. The price of synthetic oil is around two to four times the price of conventional oil. Synthetics may be more prone to additives precipitation during cold storage conditions.
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What is best oil for high mileage cars?

10 Top-Rated Oils and Additives for High-Mileage Vehicles
  • Valvoline High Mileage with MaxLife Technology Synthetic Blend Motor Oil. ...
  • Pennzoil High Mileage Motor Oil. ...
  • Slick 50 Recharged High Mileage Treatment. ...
  • Gumout Fuel System Cleaner. ...
  • Royal Purple High Mileage Synthetic. ...
  • Techron Fuel Cleaner. ...
  • Mobil Super High Mileage Oil.
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At what mileage should you switch to synthetic oil?

It's recommended that you change synthetic oil every 7,500 – 15,000 miles, depending on the vehicle and the brand of synthetic oil used. To ensure you're changing your oil at the proper intervals, always check your owners manual for more information.
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Is 5w20 good for high mileage?

Designed for high mileage vehicles

Mobil 1 High Mileage 5W-20 motor oil is recommended by ExxonMobil for use in high mileage vehicles (even those that have used lower quality conventional oils), including: Cars. Trucks.
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Why does Ford recommend 5w20?

The main reason 5W-20 was specified for your engine is to increase the CAFE reported to the Federal Government. CAFE (Corporate Average Fuel Economy) is the combined average fuel economy of all of a vehicle manufacturers product line.
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Should I use 5w20 or 5w30 in summer?

5w30 is renowned as the best engine oil at warmer temperatures when compared with the 5w20. It is the oil type characterized by higher viscosity – that is, its thickness. It experiences lots of friction and more drag when flowing.
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How long does oil last in a car not driven?

“While synthetic generally holds up better and can serve for more miles, it is equally important to not extend oil changes beyond the time interval recommended by the manufacturer—typically six months or a year if it is a motor that is not driven many miles or on many short trips.”
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What color should oil be on dipstick?

Q. What color should oil be on the dipstick? Motor oil color changes depending on the time it has been in the engine and any problems happening in your vehicle. As a general rule, new oil will be amber in color while old oil will be darker.
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