Diesel engines like the 3.0L Duramax require special maintenance, including the use of DEF, or Diesel Exhaust Fluid. Now, GM ...
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.
Diesel engines are something of a mystery to many drivers, especially in North America where gasoline is the king of motoring fuels. Of course compression-ignition has a host of benefits compared to ...
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