Every three months or 3,000 miles, the motor oil in a vehicle must be changed. Depending on the make, model and year of your vehicle, oil change costs vary. Between sales, package deals and coupon discounts, it is possible to save quite a bit of cash on your next oil change.

If you have a specific brand of motor oil or auto shop that you like, check out the deals offered on their websites first. Some of the more popular brands and services include:

Jiffy Lube: offers include $5 coupons off oil changes, $19.99 oil change specials and more promotions when you sign up for their e-newsletter.c

Firestone: offers include $10 off maintenance service and $10 off any oil change and filter.c

EZ Lube: offers include $18.99 for a full service oil change, $10 or 10 percent off oil changes and $39.99 for tire rotation and full service oil change.c

Pennzoil: offers include 15 percent off orders over $100, $50 coupons for purchases of $100 or more and $10 off when you refer a friend. Type in your zip code to get offers specific to a Pennzoil near you.c

Valvoline: offers include a $10 rebate on NextGen motor oil and a monthly e-newsletter that includes exclusive offers on Valvoline products.c c

Meineke: offers include $19.95 for a basic oil change, $29.95 for preferred oil change and various amounts off purchases depending on how much you spend. Type in your zip code for personalized coupons specific to the Meineke near you.c

Other external sites that offer various oil change coupons and offers include Printable Coupons,c Retail Me Notc and Prundo.c 

Research your favorite oils and auto centers online and find out whether they have Facebook, Twitter and even YouTube accounts. Oftentimes, if you "Like" a brand on Facebook or "Follow" it on Twitter, you will be among the first to hear about new deals and promotions.

Valvoline is one example of a brand with both Facebookc and Twitterc accounts that you can become involved in.

Check your Sunday papers for ads and coupon inserts for savings on motor oil and oil changes. You may even want to look in the Yellow Pages, as oftentimes auto shops will advertise coupons with their ads to attract customers.