It gets even more confusing when trying to decide which kind of motor oil you should use. 10W-30, for example, sounds very close to 10W-40. After all, how different can they be? 10W-30 and 10W-40 ...

Motor oil labels. These are the labels you'll find ... The more resistant oil is to thinning, the higher the second number (10W-40 versus 10W-30, for example) will be, and that's good.

Shell Lubricants has introduced Shell Rotella T6 10W-30 full synthetic heavy-duty engine oil, which provides the benefits of a full synthetic engine oil in the fastest growing viscosity grade for ...

With all that’s available, one should also be extremely careful that the correct oil viscosity is used in the engine. Designations on the label — such as 10W30 or 20W50 — tell the oil’s ...

Crack those knuckles, and massage some Voltaren on your scrolling fingers, because we're about to dig deep into the nuances of engine oil. 10W-30, 15W-40, 20W-50. We're sure you've seen these ...

The T6 10W-30 full synthetic oil is made in the fastest-growing viscosity grade for diesel engines and is designed for a wide variety of ambient temperatures. Shell Lubricants has introduced Shell ...

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 ...

including 10W-30 full synthetic and 5W-20 full synthetic. This is particularly valid in colder climates. Additionally, they can raise your overall oil pressure and decrease the flow around the engine.