Jefferson State Diesel

May 2025

Enough can’t be said about this place. My wife and I were recently on a camping trip to Lassen when my truck starting having A/C issues and a burning smell coming though the vents while towing. We only had a limited amount of time as our check out time was on Wednesday morning from the rv park. I visited Jefferson State Diesel first thing on a Monday morning and met with Austin. I told him our situation and he came out to get all the info off the truck with me. He was extremely professional and down to earth. You can tell immediately he has a great knowledge of diesel trucks. Austin asked several questions to get an idea of what may be happening and told me they would...read full review

Feb 2025

The crew at Jefferson state are extremely knowledgeable and talented.

I have a 2006 e320 Mercedes cdi that had a unique issue with an injector hold down bolt pulling the threads out of the aluminum head rendering the car an undrivable boat anchor.

They were able to diagnose a possible fix to save the car and implemented it with great success.

These dudes are smart and not afraid of a challenge. I recommend to anyone that has a diesel to bring their vehicle to Jefferson state diesel first, before anyone else in town.

Oct 2024

Well, every year during hunting season, something goes wrong with the DEF system in my truck. This year was no exception. I showed up at Jefferson State Diesel on Monday morning and explained this year's dilemma. They were able to get my truck in right away and said they would check it out in the next day or so. I ended up receiving a phone call from Austin a couple hours later telling me my truck was ready for pick up. I was more than overjoyed with their fast, and efficient service. Jefferson State Diesle has always been a reliable, trustworthy establishment who stands behind their work, and enabled this hunter to return to the woods. I highly recommend Jefferson State...read full review