Engine oil is an absolutely crucial item for any car, regardless if it's diesel or gasoline. Is it normal for the oil in diesel engines to turn black?

The test program studied the fuel efficiency potential of the engine oil. Testing followed the U.S. Environmental Protection Agency SmartWay Fuel Efficiency test protocol, which showed test results ...

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 ...

Keeping up with oil changes is one of the simplest yet most crucial ways to extend your truck's life. Diesel engines, especially in hard-working semi-trucks, deal with massive loads and long hauls, so ...

These engines provide one of the most demanding lubrication environments for engine oils to manage. Engines frequently run at high loads, switching between long periods of continuous operation and ...

If you own a Cummins-powered vehicle, there's only one name you'll consistently hear when it comes to engine oil: Valvoline Premium Blue. The product is the only engine oil exclusively endorsed and co ...

CCJ's 10 44 is brought to you by Chevron Delo, heavy duty diesel engine oil. Now there's even more reasons to choose Delo. An oil sample is only as good as the method used to pull it. You're watching ...