Oil Change Service StationAuto Repair ShopEmissions TestingAuto MaintenanceAlternator Repair
Grease Monkey, located on 1014 Whitlock Avenue, Marietta, provides a full-service 15-minute oil change. Stop by any day of the week, including Sunday, for emissions testing and tune-ups. Situated near Marietta Square and Kennesaw Mountain National Battlefield Park, our shop makes car care easy while you're out and about.
This location has horrible customer service. I went in for emissions which should be simple enough. The vehicle failed, which isn’t a big deal. However, my problem lies with the service representatives lack of professionalism. He accused me of paying someone to rig my vehicle to pass. He later said he didn’t mean to offend me but “some people do that.” Employees should be trained to tell the details of why a vehicle failed rather than making false accusations. Tony replaced the unprofessional representative. Tony was very nice. This review does not reflect Tony’s behavior, only his counterpart.
I will also note they failed to properly close the hood of my car….. their job is to service vehicles.
CD
Catherine Danforth
Mar 5, 2026
2.0
I hate that this is the most convenient place for me to get my emissions testing done. It’s the only place I’ve been that makes you get out of your car for a simple emissions test. They also give you a long list of maintenance recommendations even though I had my car at the dealership and had most of it done the week before. I had changed my air filters three days ago and the still recommended a new air filter and cabin air filter. The only reason I go to Grease Monkey is because they the first emissions place I pass when leaving my house. It also takes them forever to do a simple emissions test and it feels like it takes longer than anywhere else I’ve been.
AH
Ashlyn Hill
Mar 3, 2026
3.0
I ent for emissions and thy had to drive my car in-ok but the mechanic was messing around under the hood looking at air filters which is not part of emissions. Don’t touch what you are not supposed to for a service that does not require you too
JP
J P
Mar 3, 2026
3.0
I went in for an emissions test only. While one technician performed the test, another entered the passenger side of my vehicle and removed the cabin air filter — a service I did not request.
He brought the filter to me with leaves resting on it and told me the filter needed to be replaced. (Aside from leaves, the filter was actually nicely white and clean). I explained that I handle that maintenance myself and would not be paying for a replacement or additional service. He then reinstalled the same filter **without removing the leaves**, carrying it carefully back to the car so nothing would fall off and placing it back into the housing as-is with the leaves resting on top!
There was a trash can right beside my vehicle, and simply turning the filter over would have allowed the debris to fall off. Instead, it was reinstalled with the leaves still on it!!!
Reinstalling the leaves with the filter after removing it without authorization is unacceptable - and petty. I will not be returning for Any service.
* Emission tech = 5 Stars for fast/efficient service
Minus Crappy air filter incident = 0 Stars...
RP
Randy Potts
Feb 22, 2026
5.0
Ari and Shannon at Grease Monkey emission testing deliver fast, reliable service without the hassle.
They keep the process smooth and efficient, getting vehicles in and out quickly.
Their attention to detail ensures accurate testing and clear explanations.
Professional, friendly, and organized, they make emissions checks stress free.
If you want speed you can trust, Ari and Shannon get it done right the first time.
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