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GM Duramax diesel DEF tank failures, limp mode and long repair delays – owners’ share concerns

GM Duramax diesel DEF tank failures are increasingly popping up in social media and owners are furious about the problems around the issues with the trucks. These complaints keep popping up on various ...
GM Authority

Pouring DEF Into A GM Duramax Truck Diesel Tank Can Be A Costly Mistake: Video

Most diesel truck owners understand how to put diesel exhaust fluid (DEF) in their trucks. However, some make the mistake of getting DEF in their fuel tank instead of the dedicated DEF tank. As the ...
GM Authority

Chevy Silverado, Tahoe And Suburban Get Duramax Diesel DEF Sensor Fix

GM has reissued a service bulletin describing a fix for several possible problems found in several 2020 through 2024 Chevrolet models, including the Chevy Silverado pickup truck, Chevy Tahoe SUV and ...
Motor Trend

Our Chevrolet Silverado 1500 ZR2 Duramax Uses a Lot of Diesel Exhaust Fluid. Is This Normal?

Diesel exhaust fluid (DEF) is nothing new. GM’s Duramax-powered Chevrolet Silverado and GMC Sierra 2500HD and 3500HD pickups have had used the stuff since 2011. So has Ford’s F-Series Super Duty.