Your fuel economy is getting worse most commonly from underinflated tyres, a clogged air filter, worn spark plugs, a fau ...

Most drivers think the OBD-II port is only for check engine lights, but the right scanner can unlock live vehicle data and deeper diagnostics.

That 16-pin connector tucked beneath the dashboard of every car built after 1996 is one of the most underused tools available ...

Texas drivers must pass an annual vehicle inspection before renewing registration. Learn what’s required, common failures, ...

While diesel-powered passenger vehicles are increasingly limited in the U.S., they remain vital, especially for those in the ...

New guidance allows engine makers to replace problematic DEF sensors with NOx-based systems, aiming to reduce unnecessary ...

As the country looks to commercial companies to drive innovation, it has a golden opportunity to support open science and increase its output in key areas.