Synthetic oil is a go-to choice for many vehicle owners, but does it improve fuel economy? If better mpg is your goal, here's ...

Every engine requires oil to function, though oil itself has changed a lot over the decades. It's no longer a bad idea to use ...

Changing your car's oil is a must-do maintenance task, but does it have an added benefit of increasing your gas mileage? Here ...

This increases gas mileage, lowers engine tailpipe emissions and keeps the engine cleaner, extending its life. Full-synthetic oils are not recommended for pre-1990 vehicles, or those that ...

Stretching your oil changes to 10,000 miles sounds great on paper. Fewer shop visits, less money spent, and a little extra ...

Andrea Piacquadio/Pexels Fuel costs add up fast, but small tweaks to your driving routine and vehicle maintenance can make a ...

Just don’t put them in as you source all the good compounds one at a time and make your base oil from them. That, not some man-made substance, is what “synthetic” means in this context. I think.

PC-12, the next performance category for heavy-duty engine oils, will drive improvements across several key performance ...

Is there something wrong with this picture? Is it worth spending $2,000 to get a five mpg increase in mileage in a 2025 ...

Costco has extended the hours of its gas stations and tacked on more pumps, causing fuel sales to soar and delighting loyal customers fed up with languishing in mile-long gasoline lines.

Misti Leon’s mother, Juliana, died in 2021 during a deadly heat dome in the Pacific Northwest. Ms. Leon has filed a lawsuit against oil and gas companies alleging wrongful death.