Grease Monkey, located on North Division Street, Morris, provides a full-service 15-minute oil change to keep your vehicle performing its best. Open Sundays for your convenience, we also offer brake services. Situated close to Gebhard Woods State Park and the Illinois & Michigan Canal State Trail, our shop is easily accessible for all your automotive maintenance needs.
Computer diagnostic scan identifies check engine light codes and engine issues. Our technicians explain what we found and provide clear estimates for recommended repairs—no guessing, no hard sell.
FLEET SERVICES
Commercial fleet maintenance programs with scheduled service, priority scheduling, and detailed reporting. Professional automotive care keeps your business vehicles running reliably and efficiently mile after mile.
FUEL INJECTOR CLEANING
Professional fuel system cleaning removes deposits from injectors, intake valves, and combustion chambers. Restores fuel efficiency, engine power, and smooth operation for better performance at the pump and on the road.
HIGH MILEAGE OIL CHANGE
High mileage oil change for vehicles over 75,000 miles uses specialized formula with seal conditioners and additives. Designed to reduce oil consumption, help prevent leaks, and protect aging engine components.
MULTIPOINT VEHICLE INSPECTION
Free 16-point inspection with every oil change covers fluids, brakes, tires, belts, hoses, battery, and filters. Complimentary check helps catch small issues before they become big, expensive problems.
OIL CHANGE SERVICES
Fast oil change with standard, synthetic blend, or full synthetic options done in under 15 minutes. Includes new filter, fluid top-off, and free 16-point inspection while you stay in your car.
TIRE PRESSURE CHECK
Complimentary tire pressure check with service includes adjustment to manufacturer specifications. Proper inflation improves fuel economy and extends the life of your tires.
TIRE ROTATION
Tire rotation service promotes even tread wear and extends tire life. Regular rotation based on your owner's manual—typically every 5,000-7,500 miles—maximizes your tire investment and maintains balanced handling.
TRANSMISSION SERVICES
Transmission fluid exchange removes and refills nearly 100% of fluid including the torque converter. Maintains smooth shifting and transmission performance while helping prevent slipping, hard shifts, and costly failures.
Reviews
4.7
1,486 reviews
5 stars
1,315
4 stars
72
3 stars18
2 stars10
1 star
71
DG
Diego Gonzalez
Sep 17, 2026
5.0
Came in to inquire about my tires. I had my low tire pressure light come on. The gentleman who attended me was very professional and courteous about it, he told me all the reasons this could be happening. Also inquired about my ABS light coming on and he told me he'd run the sensor and see what pops up, then we can discuss options on it. He mentioned if all I need is for my tires to be topped off with air; no charge! If I need anything else, then we can discuss options for that as well. You can tell they run an honest business here and thats a rarity! Shout out to Adam and Nick, y'all solid, man!
GM
Garrett McCallum
Sep 9, 2026
5.0
Easy in and out. They took care of me and were quick and professional
DS
Danielle Schimel
Sep 4, 2026
5.0
Adam and his guys got me in extremely quickly when I needed time sensitive work done to my car. They were extremely caring and explained to me the whole process. They went over and checked my whole car and made sure that my battery life was good, wipers are good, checked all my lights, etc. They truly did a very detailed and amazing job. 10 out of 10 would recommend. Everyone there is so caring and helpful.
DB
Dawn Barnes
Aug 29, 2026
5.0
Best experience ever. Not treated like a woman that doesn't know anything and gets taken advantage of. Adam and team are the best.
MZ
Madison Feeney Zink
Aug 13, 2026
1.0
I would strongly recommend avoiding this Grease Monkey location. Our vehicle was on their property to have work done when a severe thunderstorm caused their large sign to fall onto our car, resulting in significant damage along the passenger side and a cracked passenger-side window.
What has been even more disappointing than the damage itself is how the situation has been handled. Initially, we were told they would speak with their boss and we were led to believe they would work with us. The following day, however, management completely refused to take any responsibility or meaningfully work toward a resolution, simply referring to the incident as an “act of God.”
Our experience with Adam in management was especially disappointing. He was extremely rude, dismissive, and unwilling to work with us regarding the damage to our vehicle.
We understand that the storm itself was out of their control, but the way a business handles a situation like this says a lot about its ownership and customer service. Our car was in their care on their property when their sign fell onto it, and instead of trying to help a customer resolve the resulting damage, they have refused to take ownership of the situation.
Very disappointing experience with management and customer service. We will not be using Grease Monkey again and would strongly recommend others think twice before doing business with them.
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