Jeff's Auto Service LLC.

Jeff's Auto Service LLC. ASE CERTIFIED MASTER TECH. GENERAL MOTORS MASTER TECH. 20 YRS GENERAL MOTORS DEALERSHIP EXPERIENCE

PROPERTY IS PROTECTED AND VIDEO MONITORED BY COVE SECURITY SYSTEMS 24/7

The heat has been oppressive lately and it sure has been taking its toll on engines and cooling systems. But every now a...
08/21/2026

The heat has been oppressive lately and it sure has been taking its toll on engines and cooling systems. But every now and then we get some basic Maintenance in.

It's that time of the year again. If you feel we are Deserving feel free to give us a vote. Thanks, and much Appreciated...
08/04/2026

It's that time of the year again. If you feel we are Deserving feel free to give us a vote. Thanks, and much Appreciated!

The Duncan Banner's annual Readers' Choice is here. It's time to vote for your local favorites. Voting is open until Monday, Aug. 31.

https://duncanbanner.secondstreetapp.com/Readers-Choice-2026/

We are starting another hot week. Finished repairing a coolant leak on a Canyon. Had so much stop leak installed it was ...
08/03/2026

We are starting another hot week. Finished repairing a coolant leak on a Canyon. Had so much stop leak installed it was pooling at the Inlet. This customer was lucky but this is one easy pay to restrict the Radiator and Heater core. Highly not recommended to use stop leaks for any fluid.

07/27/2026

We will be closing at 3PM this week due to the Projected Heat Index.

Another busy and hot day up ahead. We are resealing the rear engine cover and oil pan on this Silverado.
07/27/2026

Another busy and hot day up ahead. We are resealing the rear engine cover and oil pan on this Silverado.

The heat is really showing the Weakness in A/C systems at the Moment. This one had a leak and just needed a Single compo...
07/20/2026

The heat is really showing the Weakness in A/C systems at the Moment. This one had a leak and just needed a Single component replaced luckily. But the engineers do Not make parts easy to access.

It has been another packed week from coolant leaks, a/c issues, to Mechanical and Drivability repairs. We hope everyone ...
07/17/2026

It has been another packed week from coolant leaks, a/c issues, to Mechanical and Drivability repairs. We hope everyone has a awesome weekend.

07/04/2026

We would like to Wish everyone a Awesome Independence Day.

It is never a good sign when the Differential fluid Looks like a Capuchino.
06/30/2026

It is never a good sign when the Differential fluid Looks like a Capuchino.

We would like to say thank you to our awesome customers. We have been booked up for weeks. We are making our way through...
06/24/2026

We would like to say thank you to our awesome customers. We have been booked up for weeks. We are making our way through the backlog. Here are some of the vehicles we have been working through the shop.

Address

943 RIDLEY Road
Duncan, OK
73533

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+15807210640

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