Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

Walk into any parts store and you'll see the rows of glossy bottles promising to stop engine wear, boost fuel economy, and make your old clunker run like it just rolled out of the factory. The auto ...

As someone who's driven classic cars daily for around 15 years, as well as working on and restoring such cars throughout my education, I take vintage automotive maintenance very seriously. Many of ...

If you want your 1974 Maserati Bora to last, use the best oil additive you can find. Photo credit: David Traver Adolphus / AutoGuide.com. Most drivers know that regular oil changes are necessary to ...

Aftermarket additives are a popular off-the-shelf item at truck stops and parts counters, but many of the necessary additives already are formulated in the diesel engine oils directly from the ...

Transplanting to SoCal from the East Coast when I took this job a few years ago, I wasn't exactly current on much of the area's lingo. Being called "fool" by my new friends threw me off at first, and ...

Engine oil is so important to the operation of pickup trucks that it can be likened to blood in humans' veins. Without oil, engine parts gall and seize up. Use oil for too long and the necessary ...

Engine oil seems so simple. It's slippery. It keeps metal parts from fusing together. It's messy, especially when it has been squeezed, slung, and sprayed around the inside of a hot engine for ...

Oil in a car that is not driven should be changed at least every 6 to 12 months. While unused motor oil can last for years in ...

There's a brave new world of fuel efficiency and operational savings in trucking—one that's enabled more by a combination of advanced engine hardware and oil technology than ever before. It only waits ...

Q:For a while all I heard was how using oil with reduced zinc would destroy an engine equipped with a flat tappet cam, but the controversy seems to have died down. I'm about to put my dad's 1955 ...