Motor oil comes in a variety of forms, designated by pairs of numbers, but the most common two are 10W-30 and 10W-40. What's ...

W-30 and 5W-30 are interchangeable in hot climates, as they are identical once warm. However, owners should stick to the recommended oil in cold weather.

The T6 10W-30 full synthetic oil is made in the fastest-growing viscosity grade for diesel engines ... Shell Rotella T6 10W-30 can be used in place of a 15W-40 engine oil in most instances. About ...

<br> -- Q U E S T I O N: Motor oil: SAE 30, 10W-40, 20W-50. What do all those number and letters mean? — Danny S. A N S W E R: Many thanks for your query. I may be an Answer Geek, but I’m no ...

Ursa Super Plus EC SAE 10W-30 joins Chevron’s popular and growing family of fuel economy heavy duty diesel engine oils as a price-sensitive option alongside the premium Delo motor oils, which ...

AMSOIL SAE 0W-40 Signature Series Synthetic Motor Oil. Available at: Find locations through amsoil.com Price: $11.50 (U.S.) 10W-30, 5W-20 or even 0W-40. Picking the right viscosity for your engine ...