AutoGuide

EPA Eliminates Frustrating Diesel DEF System Rule

The U.S. Environmental Protection Agency is working to fix a long-standing headache for diesel truck and equipment operators: power cuts triggered by low diesel exhaust fluid levels. New rules will ...
Land Line

CARB, DEF, DPFs. What some truckers are getting wrong about Trump’s moves

Are older trucks allowed back in California? Is DEF dead? Can you now delete DPF? Land Line clears up myths about new ...
GM Authority

EPA Tells Diesel Engine Manufacturers To Stop Forcing Power Loss When DEF Runs Out

The Environmental Protection Agency (EPA) has issued new guidance regarding diesel exhaust fluid (DEF) systems in diesel engines that cause trucks and tractors to enter "limp mode" when DEF levels are ...
AgWeb

Farmers, Truckers and Gear Heads Rejoice: EPA Rolls Out Streamlined Diesel Engine Fluid Guidelines

EPA is rolling out new guidance for manufacturers of farm equipment and other heavy-duty vehicles, removing regulatory red tape requiring diesel-powered farm equipment to reduce engine torque ...
Morningstar

Engine Technology Forum Statement on EPA Announcement Regarding Diesel Exhaust Fluid (DEF) and Engines, Vehicles, and Equipment Using Advanced Emissions Controls

Washington, D.C., Aug. 12, 2025 (GLOBE NEWSWIRE) -- The Engine Technology Forum issued the following statement from Allen Schaeffer, Executive Director, on the announcement from the U.S. Environmental ...