The foundation of the American lifestyle and economy is cheap oil. Remove that prop and every aspect of that lifestyle becomes questionable. Not to sound too cinematic, but everywhere I look, I see ...

We may receive a commission on purchases made from links. For an engine to work efficiently (or work at all, for that matter), one factor that has a huge bearing is the engine oil. This miracle liquid ...

You walk into your local Dollar Tree and spot something unusual on the shelves — a bottle of 5W-30 motor oil priced at $5.00. Your first instinct is probably, "If the deal is too good, think twice." ...

If there's one aspect of automotive culture known to almost anyone, it's expense. Car payments, maintenance costs, auto loans, and so on all contribute to one of the largest money sinks in the average ...

Experienced drivers know that high mileage cars demand special attention. Most oil manufacturers advertise specific lines of engine oil made for high mileage vehicles. These are cheaper than their ...

Even as cars become increasingly sophisticated, motor oil remains the engine’s lifeblood, and caring for this fluid is vital. Fortunately, this is a rather simple task—and your car’s onboard computer ...

It is widely known that diesel engine oils contain more Zinc (ZDDP) than regular passenger motor oils, but does that make a diesel engine oil (HD) a good choice for hot rods or race cars? To answer ...

Diesel engines are large investments. And because they’re an upgrade option on our trucks, SUVs, and passenger cars, they cost more. How do you protect that investment? One easy way to catch a glimpse ...

Changing your car's oil is a great feeling, right? You save money, you feel self-reliant, and you get to look at the black goop you just drained and think, "Yep, that did some serious work in there." ...

A dyno test showed dangerously low oil levels can produce a 10 percent horsepower bump in an LS V8—for one run, at least. It’s Sunday, Sunday, Sunday, and do I have an offer for you! No, it’s not ...

The oil you put in your engine matters. After all, your engine contains many moving parts that must remain lubricated to work properly. Otherwise, your engine could develop some serious wear and tear.