When we got the invitation to tour Bosch's oxygen sensor plant in Anderson, South Carolina, it had all the allure of eating a sand sandwich. Let's face it, oxygen sensors aren't the most glamorous ...

I've recently bought a pick-up (2000 Nissan Frontier 2wd 4 cyl). It has about 118k on the odometer, mostly highway miles. Engine runs good, transmission shifts well, etc. However, the gas mileage is ...