15285 N. 137th E. Place
Collinsville, OK 74021

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Sales: 918-770-4339

Used Cars: 918-770-4339

Hours Toggle

Sales Department

Sun Closed
Mon 9:00am – 7:00pm
Tue 9:00am – 7:00pm
Wed 9:00am – 7:00pm
Thu 9:00am – 7:00pm
Fri 9:00am – 7:00pm
Sat 9:00am – 6:00pm

Service Department

Sun Closed
Mon 7:00am – 6:00pm
Tue 7:00am – 6:00pm
Wed 7:00am – 6:00pm
Thu 7:00am – 6:00pm
Fri 7:00am – 6:00pm
Sat 8:00am – 12:00pm

Reviews of Mark Allen Buick GMC

Overall Rating:

4.8 (out of 5)

97% recommend this dealer

381 total reviews

Showing the most recent reviews from Cars.com and DealerRater.

4.0 (out of 5)

Nick was very informative when I arrived at 7:20 AM.

Reviewed by RAMDO8277January 14, 2026

Nick was very informative when I arrived at 7:20 AM. However, I always feel a bit leary when they cannot give me a "differntial diagnosis" for my problem. I did like that the texts sent were helpful and phone calls were prompt to tell me first what the problem turned out to be and when the car was ready for pick up. The only thing is the cost of everything...probably to be expected at a dealership. I wish I could have worked at their hourly rate and then because I used a credit card, a 2% charge was attached that I was not made aware of at the time when I paid.

  • Does recommend this dealer
  • Came in for service or repair

Overall Experience 4

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

5.0 (out of 5)

Paul was an outstanding sales representative.

Reviewed by bruce_havensJanuary 13, 2026

Paul was an outstanding sales representative. He was kind and helpful through the process of finding the right vehicle.

  • Does recommend this dealer
  • Shopped for a used car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

5.0 (out of 5)

I had a wonderful experience with Chance at Mark Allen

Reviewed by Moviegal79January 12, 2026

I had a wonderful experience with Chance at Mark Allen Buick GMC. So thankful it was a smooth and easy time buying a new car.

  • Does recommend this dealer
  • Shopped for a used car

Overall Experience 5

Customer Service N/A

Quality of Repair N/A

Friendliness N/A

Pricing N/A

Maximum rating = 5

About Mark Allen Buick GMC

Thank you for choosing Mark Allen Buick GMC. We are a new and used Buick and GMC dealership in Collinsville OK. We have new GMC and Buicks and more at our dealership. View our inventory of these ever-popular vehicles and take a test drive at our dealership. Our dealership is easily accessible from Highway 169 just North of the Collinsville exit located @ 15285 N. 137th E Pl Collinsville Ok 74021. We invite you to check out the amazing deals and attractive offers available at Mark Allen Buick GMC.

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