Jason Duncan
Jason Duncan at Tillery Buick GMC

Jason Duncan

General Sales Manager

Tillery Buick GMC

2221 Autumn Brush Rd NW
Los Lunas, NM 87031

Contact Me
5.0
58 Reviews

Dealership Experience

7 yrs, 5 mos

Industry Experience

20 yrs, 5 mos

Languages Spoken

English English

5.0

58 Reviews

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58 Reviews of Jason Duncan

April 28, 2026

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Employee Rating

I had a great experience at Tillery GMC! Donna was amazing—she was very helpful, made the whole process quick and easy, and helped me get into my new vehicle without any stress. The entire s More

by yeseniavarela5
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Trade-in Experience
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Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman, Justin Post

April 27, 2026

Dealership Rating
Employee Rating

We had such a great experience with Tillery GMC-Donna and the whole team were incredible. Donna was great to work with-knowledgeable, easygoing, and genuinely attentive. Claude kept everything smooth on More

by sylviaclemens
Sales Price Transparency
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Recommend Dealer
Yes

February 20, 2026

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Employee Rating

Donna was very friendly from the beginning She explained everything, we felt very comfortable with her More

by beatafoya23
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Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman

June 09, 2025

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Employee Rating

Jason, Donna, and Justin were the best, Donna explained everything thoroughly and her customer service is awesome, Tillery in Los Lunas is Highly recommended. This is the dream team. More

by marthamahboub
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman, Justin Post

April 12, 2025

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Employee Rating

Tillery and its team are amazing! They aren't pushy and help you in anyway they can! Donna goes above and beyond and makes the car buying experience easy and quick! More

by culibarr2007
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman

January 20, 2025

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Employee Rating

Donna is a great person to work with. We will definitely recommend her and Tillery. More

by rudedawg4652
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Purchase Time
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Recommend Dealer
Yes

December 19, 2024

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Amazing service, very friendly and helpful made the process a whole lot easier. Was always checking in to see if we needed anything else More

by neivamartinez89
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman

October 25, 2024

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Employee Rating

I didn’t feel pressured. Nor did I have a know it all salesman. Donna was great, Justin was great, my pickup was shiny and clean. And I got a full tank of gas and an oil ch More

by claudettegallegos723
Sales Price Transparency
Trade-in Experience
Purchase Time
Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman

October 25, 2024

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Employee Rating

Donna is such a great person to work with. This is the third truck she has sold me. I would recommend her for all your purchases, Great dealership all the way around!! More

by evetsabq
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman, Rudy Jauregui

July 13, 2024

Dealership Rating
Employee Rating

Everyone was very friendly knowledgeable. Donna was fantastic. Extremely service oriented. Will recommend tillery to others. More

by pcp38
Sales Price Transparency
Trade-in Experience
Purchase Time
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Recommend Dealer
Yes

Other Employees Tagged: Donna Coffman , Justin

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