RockAuto orders ship from multiple locations using FedEx, UPS, Overnite or U.S. Postal..

If your tracking number is 12 or 15 digits (numbers), the package shipped via FedEx, track it at www.fedex.com.

If your tracking number starts with 1Z, T or D, or is 11 digits long, it shipped via UPS, track it at www.ups.com.

If your order included large body parts and the tracking number is a 9-digit number, it shipped via Overnite Transportation, track it at www.overnite.com.

International and APO/FPO customers: if the tracking number starts with E and ends with US, it shipped via U.S. Mail, track it at www.usps.com.

Carriers take up to 24 hours to update information on their web sites, so please don't worry if tracking results are not available immediately.

Our spark plug listings have been refreshed with the latest data from NGK, Champion, Autolite and AC/Delco.

Whether you want a basic Champion plug for your 1949 Ford or the latest NGK Iridium plug for your 2004 Honda, RockAuto has it!

Maintenance Tips

• Depending on the vehicle and the type of spark plug, replacement intervals range between 30,000 and 100,000 miles.
• Poor gas mileage, a failed emissions test, and rough running/poor acceleration with the engine under load could be symptoms of one or more faulty spark plugs.
• Your Check Engine or Service Engine light can be triggered by a faulty spark plug.
• A damaged catalytic converter may result from faulty spark plugs.

In order for us to serve our customers better we have expanded our customer service hours to include Saturday.

RockAuto office hours are now Monday-Friday 7am to 6pm and Saturdays from 8am-3pm CST.

We look forward to serving you in 2005!

How do you rate yourself on the car care awareness scale? Here's an opportunity to find out with our true/false winter maintenance quiz.

Answers:
1. (F) If the battery can turn the engine, the problem is elsewhere. The car generally requires diagnostic services. 2. (T) In cold weather, moisture in air tends to form inside the gas tank. The more gas in the tank, the less space for air, helping to prevent moisture. 3. (F) About a minute should be enough. After that, drive conservatively until the engine reaches normal operating temperature. 4. (T) The engine is your heat source. If a malfunctioning thermostat causes the engine to run too cold, you'll be cold, too. Also, a cold running engine burns more gas and increases exhaust emissions. 5. (F) Four-wheel drive helps when starting out and accelerating, but on any type of surface it's good brakes on all four wheels that helps you stop safely.
Quiz provided by carcare.org

This is my 1992 Ford Crown Victoria made better with parts from Rock Auto. Your unique online database makes it easy to find the correct parts for my car and your competitive pricing and shipping make buying easy.

Over the past year and a half the car has received a number of major updates and now features parts from 1992, 1994, 1996, 2001, and 2003. Trying to explain what I have to a counter jockey is nearly futile which is why I really appreciate the ability to search online, and if I do need help, your e-mail replies are always prompt.

Herm in Cincinnati

Share Your Hard Work

Do you purchase parts from RockAuto? If so, RockAuto would love to feature you and your vehicle(s) in our monthly newsletter. Please e-mail flamur@rockauto.com with details.