Engine oil is vital for protecting a car’s engine. If your car requires 5W-20, can you use 5W-30 instead? Here’s why those ...

In the past, there have been similar shifts in preferred engine oil viscosity grades. An example is the transition in heavy duty diesel engine oils in the 1980s from monograde viscosity SAE 30 and ...

Last week we explained the basics of motor oil, from viscosity to additives and everything in between. Now it’s time to tackle a much more contentious issue: synthetic versus conventional.

Engine oil needs to form a protective film, which prevents metal to metal contact. “An old axiom in the lubricants business is to use the lightest viscosity oil that will adequately protect the ...

However, before mixing two different engine oils, you must understand multiple parameters. Oil viscosity is listed on the front of the oil container. There will typically be two numbers and the ...

Viscosity: Using CNG eliminates fuel dilution of oil and it thickens over time, which can have a negative effect on a lubricant's ability to protect the CNG engine. Oxidation: CNG engines go to ...

If you're unsure when to perform a car oil change for your specific engine, consulting a professional can provide clarity.

As emissions regulations tighten, the PC-12 category is poised to deliver engine protection while improving fuel efficiency ...

It's acceptable to use 0W-20 engine oil in place of 5W-20 or even 10W-20, since the number preceding the W refers to its low-temperature viscosity. However, you should match the oil grade exactly ...

That means these engines usually need lower-viscosity oil—oil that is “thinner” and flows more easily to form a cushion of lubrication between two parts. At lower viscosity, synthetic oil ...