Does it matter what brand of motor oil I use?

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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Is it OK to use different brands of motor oil?

WHAT ABOUT MIXING ENGINE OIL BRANDS? Yes. It won't harm your engine to mix, for example, Quaker State® motor oil with Pennzoil, as long as the oil you use is the weight (or viscosity) recommended in your vehicle owner's manual.
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Do you have to use the same brand of motor oil?

THE ANSWER IS NO!

Technically, using a grade of oil that's recommended by your car manufacturer is correct. However, if you combine two different brands of motor oil, you could be at risk of damage.
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Is there really a difference between motor oil brands?

The formulations of some additives can affect certain parts of the engine differently than those of other additives. It is basically the same brand of motor oil, according to myth. There is no truth in that statement. It is possible for base oils, additives, etc. to differ from brand to brand.
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Which is the best motor oil to use?

  • Mobil 1 Extended Performance : Best Advanced Synthetic Motor Oil.
  • AmazonBasics Full Synthetic High Mileage Motor Oil : Best Budget Synthetic Motor Oil.
  • Castrol GTX : Best Conventional Motor Oil.
  • Shell Rotella T6 Diesel Engine Oil : Best Diesel Motor Oil.
  • Quaker State Synthetic Blend : Best “Get-it-Home” Motor Oil.
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All engine oil is the SAME?



What happens if I put the wrong oil in my car?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
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Should I use the same oil every time?

Myth #2: You should change your oil every 3,000 miles.

Oil chemistry and engine technology have evolved tremendously since the days of the 3,000-mile oil change. The majority of vehicle manufacturers now recommend vehicle owners change their oil every 7,500 to 10,000 miles, based on a normal maintenance schedule.
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Can I mix Pennzoil and Valvoline?

Can You Mix Two Synthetic Oil? Yes. It is not possible to mix synthetic and conventional motor oil. Synthetic oil, however, will lose some of its advantages when conventional oil is used.
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Can you mix brands of synthetic oil?

Synthetic oil makers state that it is an acceptable practice to mix synthetic oil from different manufacturers. In fact, synthetic oil can also be safely mixed with conventional oil.
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Can you mix car engine oils?

While mixing car oils isn't bad from your engine, there are a few things you need to be careful about. Mixing different industrial oil formulations for hydraulic systems, compressors and gearboxes can be bad for the seals and bearings. This doesn't apply to certified oils.
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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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Which motor oil is better Pennzoil or Valvoline?

Besides, no other conventional oil offers superior wear protection than Pennzoil – 550045214 conventional oil because it prevents metal-on-metal contact. More than that, Pennzoil oil change cost is minimal compared to Valvoline. Overall, compared with Valvoline, Pennzoil is generally superior.
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Can I mix Valvoline and Castrol?

Is it possible to mix Castrol and Valvoline? It is possible to mix different oil brands, so long as they meet the exact specifications of each brand. Mix Valvoline 5w30 with Castrol 5w30 oil if you have it. Performance will not be an issue.
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Can I mix Castrol and Shell?

You'll be fine.
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Do oil filters make a difference?

Your car's oil filter prevents dirt and debris from entering your car's engine, helping keep your car running optimally for a long time. Oil filters also help prolong the life of your oil, allowing you to go more miles before an oil change.
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Is synthetic oil better than regular oil?

Is synthetic oil better for my engine than conventional oil? Yes, synthetic oil is better for your engine than conventional oil. Although conventional oil (i.e., mineral oil) can provide adequate lubrication performance, it can't compete with the overall engine performance and protection provided by synthetics.
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Are synthetic oil filters worth it?

While you don't have to use it with synthetic oil, there are some advantages. Typically, synthetic oil filters do a better job of trapping small contaminates for a longer period of time (and more miles on your vehicle), meaning less frequent changes. Combined with synthetic oil, it means fewer trips to the shop.
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What happens if I put 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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What happens if I put 10w30 instead of 5w30?

Can I Mix 10w30 and 5w30? Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine.
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Can I put 5W 40 oil instead of 5w30?

In practice, this means that each oil is just as viscous at lower temperatures and will remain viscous at -30°C, however 5w40 oil outperforms 5w30 oils at higher temperatures, being effective up to ambient temperatures of 50°C, as opposed to 30°C.
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Is Valvoline better than Castrol?

Valvoline is better in some areas, the same as Castrol. For example, it has the best conventional motorcycle oil suitable for cruisers. On the other hand, Castrol has products that guarantee the engine's long life, courtesy of Magnatec technology.
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Whats the difference between full synthetic and synthetic blend?

Full synthetic oil uses higher quality base oils than the less-refined oil used in conventional oils, making its molecules more uniform in size with much fewer impurities. While synthetic blends and conventional oil use crude oil as their base, which is found to have more impurities.
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Is Mobil 1 better than Royal Purple?

I have seen many times the friction test of oils using the machine that tests the oil film, test result shows that Royal Purple has more friction protection that Mobil 1 oil does,seeing these results makes me think that Mobil 1 oil is lacking some benefits, therefore Royal Purple has the better protection of all.”
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How good is Valvoline oil?

Valvoline is known to provide top-notch car care products. This particular synthetic oil is very efficient and comes at an attractive price. It's able to enhance the overall engine performance right after the application, making your vehicle smooth and quiet.
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