It looks like almost every Grease Monkey oil change station from Colorado to Wyoming, and Arizona to Indiana is offering a similar oil change coupon. The majority of the coupons are for either $3, $5, or $6 off of an oil change.
Every location has a different discount, but each may have a different base price, so it is worth calling ahead to get information about how much your oil change will actually cost.
Below I have prepared a list of all of the Arizona and most of the Colorado locations offering discount oil changes for March. You may find that a lot of these coupons are good for all of 2012, so you can use them for all over you oil changes throughout the year on all of your vehicles.
Coupons can be found by going to the individual locations link at greasemonkeyintl.com/locations.php.
$3 off oil change coupon:
1010 E. Colfax Ave.
Denver, CO 80218
18609 Green Valley Ranch Blvd.
Denver, CO 80249
$5 off oil change coupon:
1304 US 280 Bypass
Phenix City, AL 36867
630 N. Montezuma St.
Prescott, AZ 86301
3355 E. Speedway Blvd.
Tucson, AZ 85716
7110 E. Golf Links Rd.
Tucson, AZ 85730
32120 Clinton Keith Rd.
Wildomar, CA 92595
11802 Ralston Rd.
Arvada, CO 80004
6510 Indiana Street
Arvada, CO 80007
1527 Peoria St.
Aurora, CO 80010
15321 E. Quincy Ave.
Aurora, CO 80015
1790 S. Buckley Rd.
Aurora, CO 80017
18401 E. Hampden Ave.
Aurora, CO 80013
22515 E. Aurora Parkway
Aurora, CO 80016
404 W. Bromley
Brighton, CO 80601
4114 E. Bromley Lane
Brighton, CO 80601
7400 US Highway 287
Broomfield, CO 80020
5450 Front Street
Castle Rock, CO 80104
6722 S. Potomac St.
Centennial, CO 80112
350 South 8th St.
Colorado Springs, CO 80905
3795 Airport Rd.
Colorado Springs, CO 80910
6000 Parkway Dr.
Commerce City, CO 80022
1295 S. Colorado Blvd.
Denver, CO 80246
2495 S. University Blvd.
Denver, CO 80210
2890 N. Colorado Blvd.
Denver, CO 80207
515 S. Federal Blvd.
Denver, CO 80219
7181 N. Pecos
Denver, CO 80221
7225 E. Hampden Ave.
Denver, CO 80224
$6 Off Oil change coupons:
2405 28th St.
Boulder, CO 80301
2710 Baseline Rd.
Boulder, CO 80305
7665 E. Arapahoe Rd.
Centennial, CO 80112
8260 S. Holly
Centennial, CO 80122
7005 Austin Bluffs Pkwy.
Colorado Springs, CO 80923