Is DEF fluid required by law?
DEF fluid, or diesel exhaust fluid, is a liquid used to help reduce emissions from diesel engines. DEF is injected into the exhaust system, where it helps to break down harmful emissions into harmless …
Is DEF fluid required by law?
DEF fluid, or diesel exhaust fluid, is a liquid used to help reduce emissions from diesel engines. DEF is injected into the exhaust system, where it helps to break down harmful emissions into harmless …