The engine oil cooler on GM's 6.6-liter Duramax diesel keeps engine oil and coolant apart. When a Duramax oil cooler cracks, oil leaves the engine for the cooling system and the dipstick reads low. A ...

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 lawsuit against General Motors claims the auto manufacturer hid a defect in its oil coolers for 2024-2026 truck models and is refusing to cover resulting engine damage under ...

The 1962 GMC C1000 gets a comprehensive engine refresh with a vintage-inspired twist, blending modern LS reliability with ...

The arms race between heavy-duty pickup-truck makers is alive and well, even as much of the auto industry focuses on electrifying its lineups. Still, Detroit’s Big Three continue to push the limits of ...

GM’s new Duramax turbo-diesel 8.3-liter V-8 will go into the 2027 Chevrolet Silverado and GMC Sierra 2500/3500 pickup trucks. The new engine makes 555 horsepower and 1,230 pounds-feet of torque.

In the world of giant turbo diesel engines, there is no replacement for displacement, at least if you're asking Ford, Stellantis, or General Motors. Following that logic, the biggest diesel engines ...

It'll be a cold day in hell before heavy-duty pickup-truck makers like GM, Ford and Stellantis stop trying to one-up each other on power and performance numbers. Sure, the price of diesel just hit a ...

Fresh off announcing changes to its 2027 full-size truck engine lineup, General Motors is also giving its midsize pickup duo a substantial power boost for the 2027 model year. According to order guide ...

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Evan Williams is an automotive journalist and mechanical engineering technologist with more than a decade of experience in the industry. He has written for the Toronto Star and AutoTrader Canada and ...

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