Do you have a technical question about your car or truck, a nagging problem you can't solve, need advice on how to maintain your vehicle or just want to put an automotive myth to the test?

Just go online and send your questions and comments to Tech Talk columnist Todd Green at grumpymechanic@shaw.ca.,and we'll publish it in Driving.

Todd is a Journeyman Automotive Technician and a member of the Society of Automotive Engineers.