We earn commissions from purchases you make using links in our articles. Learn more. Save time and money by changing your own oil. See the best conventional motor oils here. Shopping for engine oil ...

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The best synthetic oils offer more mileage, keep the engine cleaner, perform equally well in low and high temperatures, and protect your engine by keeping wear at bay. When it comes to the topic of ...

To evaluate the engine wear protection provided by SAE 5W–30 engine oils, two SAE 5W–30 engine oils containing different VI improvers and having different high–temperature high–shear–rate viscosities ...

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for when ...