Ottawa’s Trusted Diesel Performance & Repair Shop.

Welcome to Precision Diesel! We are diesel maintenance and performance specialists, located south of Ottawa. If you have a diesel vehicle, we are your honest mechanics to take care of you right.

Because diesel is what we know best, you have a team of experts who can diagnose the root of the issue quickly and recommend the optimal solution for your vehicle performance – all while passing these savings onto you! We are also all about diesel performance with the latest tools & technology to provide your vehicle optimal power, fuel savings and longevity.

Have a question or issue with your diesel vehicle? Speak to an expert at Precision Diesel to get to the bottom of it.

12024 Dawley Drive, Winchester, ON, K0C 2K0
613-774-6619 |

Trusted Mechanic By:

“First time visiting this shop. Richard and Evan were great and really know their diesel trucks. I’ll be a repeat customer for sure.” – Don

“I realized my truck was a challenge, but you said you have never been beat before and you proved that. You are the best of the best.” – Larry