Test Your Motor Oil Knowledge

1. Adding a can of additives to your oil increases its useful life.
   T or F
2. Using the wrong oil can void the warranty on your vehicle's engine.
   T or F
3. Dirty oil is a sign of engine problems.
   T or F
4. Some motor oils improve your gas mileage.
   T or F
5. For most passenger vehicles, SAE l0W-30 motor oil can be used for year-round driving in areas where temperatures never drop below zero.
   T or F
6. Passenger vehicles operated in Òsevere serviceÓ need more frequent oil changes than vehicle driven in normal service. Which of the following driving conditions are considered severe? (choose one or more): short-trip driving; long-trip driving; driving in heavy traffic; driving in dusty conditions; driving at highway speeds; cold-weather driving; hot-weather driving; driving in mountainous terrain; towing trailers, boats, and other items.
7. The "W" in SAE l0W-30 stands for (choose one): weight; warranty; winter; workhorse.
8. How often should you change your oil filter? (choose one): once a year; every fifth oil change; never; every oil change.

The answers