HEATKEYS

The HowStuffWorks Auto Section contains articles about everything from engine workings to classic cars. Learn about cars on HowStuffWorks Auto.

Automotive electrical training support for technicians, students, and teachers. Online ASE test prep practice exams, technical articles, tutorials.

Automotive repair & diagnosis help for common car problems,car repair advice, fix check engine light

Cummins Filtration is the global Filtration, Exhaust, Coolant and Chemical specialist for all diesel engines (1- 7000 h.p.) and the technology/environmental leader of combustion engine-powered systems; including small engine, recreational vehicle and...

YouTube is a place to discover, watch, upload and share videos.

Clean Diesel Technologies is a cleantech company that develops, designs, markets and licenses sustainable solutions to reduce emissions, increase energy efficiency and lower the carbon intensity of on- and off-road engine applications.

AGCO Automotive Diagnosis Maintenance Repair website home page

Online information service on diesel exhaust emissions, emission control technologies, emission standards, regulations, measurement, health and environmental effects.

Online Open Resource SR20 Community

Hire Mechanics that will come to your home or work to fix your car. Save 20% or more on car repairs. Convenient, affordable and transparent.

Automotive Aftermarket Suppliers Association - Home Page

High Performance K&N Air Filters, Air Intakes, and Oil Filters for auto, gas and diesel truck, motorcycle, off-road and racing vehicle, marine, snowmobile, ATV, dirt bike, small engine, and industrial use. K&N now also has washable air filte...

An online ASE study guide filled with practice test questions and detailed expanations. Use this ASE certification study guide for test preparation and ASE practice quiz for the A1-A8 ASE tests.