Aside from diesel fuel, engine oil might be the most critical fluid in a truck because it influences two of the top three equipment-related costs for fleets: fuel and maintenance. And with various ...

Synthetic engine oil might seem like it carries some risks or downsides. However, you should consider switching to synthetic ...

Motor oil has quietly become one of the most important choices car owners make, especially as vehicles routinely cross ...

Preventive maintenance expenses are increasing as more OEMs require the use of more expensive synthetic motor oil for new models, which costs about 60% more than traditional mineral-based motor oils.

Walk into most quick-lube shops and you'll walk out with a sticker telling you to return in three months or 3,000 miles. It's ...

I’ve been getting a lot of mail regarding using synthetic motor oil in vehicles. Questions such as: Should I use synthetic oil? Does it work better in some cars than others? Does it cost more? Do I ...

Although sales of electric vehicles (EVs) are continuing to grow around the world and are expected to keep rising in many markets, including in the United States, the overwhelming majority of the ...

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 ...

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 ...

Amsoil has a complete line of diesel engine synthetic oils. The line features the Signature Series Max-Duty Synthetic in 5W-40, 5W-30, 10W-30, 15W-40, and 0W-40 grades. The line also includes ...

Q: I have a 1994 Toyota Celica and have always used conventional oil. Should/can I change to synthetic? Can I mix the two? Car Doctor: How to spot a 'flood' car before you buy Car Doctor: Can you give ...