You need your oil changed anyway, so you might as well save money.  At Jiffy Lube, they have a promotion called "Perfect 10" where you can get a free $10 American Express gas card when you get your oil changed.  And you can sweeten the deal by printing a $5 off coupon for your oil change, for a total savings of $15.

Jiffy Lube oil change includes the following services: Change the oil with up to five (5) quarts of quality motor oil; replace oil filter; inspect belts, blades, headlights and fluid levels; vacuum interior, wash windows, lube chassis if needed; top off fluids.You will also receive free top-offs on motor oil and any or all of these five vital fluids between service visits for up to 3,000 miles.

Offer Details:
Visit a participating Jiffy Lube service center between June 18 and July 31, 2008 and purchase a Jiffy Lube Signature Service® Oil Change. Ask for the mail-in form for a $10 value American Express® prepaid fuel card. You will also receive a Fuel Efficiency Review as part of the Jiffy Lube Signature Service® Oil Change.

The prepaid card is valid for use virtually anywhere American Express® Cards are welcome in the U.S. and Canada for gas purchases. Exceptions apply in New Jersey. New Jersey customers will receive a $10 value American Express® prepaid card. Card received back by mail. Allow up to eight weeks for delivery. Card is valid for six months. Unused card balances expire, subject to applicable law. Card cannot be redeemed for cash. Valid only at participating locations. Void where prohibited or restricted by law.

Expiration Date: 7/31/2008