General Motors' LS4 engine has long been known to have a number of issues - here are the biggest problems owners have ...

A new class action says GM uses low oil to deny Duramax engine claims. GM’s own 2024 and 2025 dealer bulletins show why a cracked oil cooler makes a neglected engine and a defective one look the same.

Big numbers are fun to rattle off, and big numbers tend to come hand-in-hand with big pickup trucks. We love being able to ...

Diesel engines haven’t enjoyed the broad appeal in the U.S. that they have in the rest of the world, but there is one segment ...

A proposed lawsuit says GM concealed an oil cooler defect in Duramax-powered Silverado HD and Sierra HD trucks and denied ...