Business Details
About
Oil Change Service StationAuto Repair ShopAuto Air Conditioning ServiceAuto MaintenanceAlternator Repair
Grease Monkey, located at 3590 E. 104th Ave., Thornton, provides a full-service 15-minute oil change to keep your vehicle in peak condition. Open Sundays for your convenience, we also offer brake service, AC recharge, and tire rotation. Conveniently located near Thornton Recreation Center and just minutes from Carpenter Park, our shop makes car maintenance easy while you're out and about.
Location
Hours
Reviews
4.4
615 reviews
5 stars
466
4 stars
50
3 stars
18
2 stars
15
1 star
66
What are people saying?
AI-generated from recent customer reviews
Service Quality
Customers reported a mix of experiences, with many praising the friendly and efficient service, while others experienced issues with incomplete or poor-quality work.
Customer Care
Several reviews highlighted the helpfulness and professionalism of staff, particularly in resolving issues, though some customers felt their concerns were not adequately addressed.
Timeliness
Many customers appreciated the quick service, often noting that they were in and out in a timely manner, although there were instances of longer wait times and service delays.
Communication
While some customers felt informed and respected during their visits, others reported poor communication regarding service details and pricing.
- SPSteve Pugh6 days ago5.0I like dealing with Greasemonkey, but you need to make a printer friendly email reciept. I just need a single page reciept, not a three page version with color everything. Make it 1 page and black and white. Please don't waste my paper and color ink. What services did I get, I got an oil change, not listed as an option.
- CCColten Clark6 days ago5.0Fast, nice, don’t upsell. Would recommend
- TRThe ReubeniteJan 5, 20261.02012 BMW X5 XDrive35i : We brought the car here on 12/22/2025 for an oil change. About a week later we receive the critical "Low oil pressure" warning. I brought the vehicle back for reinspection and was told it may be a sensor issue even though the sensor was brand new. I ordered the adapter tool for the oil cap and a new oil filter and cap as I suspected they threw away the oil cap centerpiece with the old filter. When the items arrived, my suspicions were confirmed. The centerpiece was missing along with a gasket that controls oil flow into the engine. I inspected the filter for metal and luckily there was none. This could have resulted in catastrophic overheating and engine failure. NEVER AGAIN! I'll take responsibility for bringing the car there in the first place. If Grease Monkey employees are not familiar with European vehicles, they should refer customers to another shop. If you have a BMW or Mercedes, think long and hard before settling for Grease Monkey.
- AWAnnie WhiteDec 31, 20255.0I had a great experience today at Grease Monkey. I was greeted quickly, and my car was taken back almost immediately for service. The manager went over recommendations for my vehicle and was very honest and fair with what needed to be done now, and what could wait. He also explained how they test each fluid, and in the end, even walked me out to my finished car and opened my door. Great, kind, fast service from start to finish. Thank you!
- GTGerman TellezDec 19, 20251.0It’s almost been a year that I have a bad spoon with them. My truck is not working. Supposedly they do the claim and I haven’t received a response from the claim. I called to the claim members and then I haven’t have any response since almost a year they supposed to do the oil is not the first time it’s been happening to two different great monkeys so people please check your vehicle when you’re doing the oil change cause they don’t do anything
Frequently Asked Questions About Grease Monkey
What services does Grease Monkey in Thornton, CO offer?
Grease Monkey provides oil changes, brake service, AC recharge, tire rotation, and other vehicle maintenance services.
Where is Grease Monkey in Thornton located?
Grease Monkey is located at 3590 East 104th Ave, Thornton, CO 80233, USA.
What are the operating hours of Grease Monkey in Thornton?
Grease Monkey is open Monday to Friday from 8:00 AM to 7:00 PM, Saturdays from 8:00 AM to 6:00 PM, and Sundays from 10:00 AM to 4:00 PM. The shop is closed on November 27 and December 25, 2025.
Is Grease Monkey in Thornton open on Sundays?
Yes, Grease Monkey is open on Sundays from 10:00 AM to 4:00 PM for your convenience.
How long does an oil change take at Grease Monkey?
Grease Monkey offers a full-service oil change in approximately 15 minutes to keep your vehicle in peak condition.
Can I get brake service at Grease Monkey in Thornton?
Yes, Grease Monkey provides brake service along with other automotive maintenance services.
What nearby places can I visit around Grease Monkey in Thornton while my car is serviced?
Nearby places include Thornton Recreation Center and Carpenter Park, where you can enjoy recreational activities while your vehicle is being serviced.
Are there convenient food options near Grease Monkey in Thornton?
Yes, you can find Thora's Comfort Foods, McDonald's, and Vietnamese Cafe nearby for a quick meal or comfort food while you wait.
Where can I find fuel and convenience stores near Grease Monkey in Thornton?
Phillips 66 Gas and Jenny's Market are nearby providing fuel and convenience store options.
How can I contact Grease Monkey in Thornton for inquiries or appointments?
You can reach Grease Monkey by phone at +1 303-452-9401 or email them at retail9@greasemonkeyintl.com.