Great Servi e and excellent work on both of my classic cars. Thanks for everything. Bud. Cheyenne…read more Wyo.i g

Great service, honest assessments. Worked to get my car fixed at the best price possible…read more Customer for life!

I always take my car here. When I first moved to Greeley I had a very difficult time finding a…read morereliable mechanic. Everyone I found was overpriced and could not fix my car in what I felt was a timely manner. I am a delivery driver, so it is imperative that I have my vehicle in good running condition and available at all times. Not only is Greg a great mechanic providing excellent customer service, he is also understanding of my situation. If you are someone like me who needs their car promptly without breaking the bank then this is the place for you!

I first started going there about 20 years ago. I was at Weld county garage And they told me my…read moretransmission was bad took it to Greg for a 2nd opinion when i returned he had fixed the problem. He stated it was a minor problem so it fixed it on the spot. WCG wanted 3 thousand to repair my truck he repaired it for 40 bucks been going there for 20 years and he has always been fair and always stood behind his work. He guarantees his work . He has worked on every car and truck I've had in the last 20 years. Greg is honest and fair. I will never trust anyone else.

Fantastic service, a lifesaver! We had literally just pulled into town (helping someone move here…read morefrom California) when we heard a loud short grinding and lost power, even though the engine sounded fine. I immediately thought it was the transmission. I called another place but they were already overbooked, and suggested we try Bernie at Best Western. Bernie was very optimistic that they could help. We had the car towed there the next morning, and had a diagnosis that afternoon. (It turned out to be the CV joint and axle.) The car was fixed and ready to go the following day. The price was great and we were on our way again back to CA. I can't say enough about how friendly and efficient they were, this shop gets my highest praise!

This is a great local business and I highly recommend them!…read more My best friend had her transmission fixed here and told me about them. I took mine in and they had excellent customer service. I was even able to get a rental car for special rates while they worked on my car for two days. I just picked it up and it runs great, it shifts (I have a standard) like new. The price was great and Bernie was friendly and professional. I am very satisfied with the work and happy that my friend sent me here- it was way more afforable than the dealer would have cost me.

They ripped me off. They rebuilt my f350 e40d and now it's worse than before and they will not…read morehonor the warranty. Do not do business with thses scammers!!!!

Guys is a scam artist. After three attempts to rebuilt a th400 for me he stopped replying. Took…read moremonths to get each one repaired and the trans I took him in the first place worked better than all three. Stay away.

Would not ship my car back to me, without me agreeing to an extra last minute agreement…read more Transmission lost fluid on trip back to California. Transmission had to be redone. Returned my truck to me in Unrepaired, Unusable, condition. Last minute agreement included For ME to update my equipment to +$1,200. dodge OME only cooling for transmission. In order for my transmission warranty to be valid, must be under these NEW Terms. Not happy, or satisfied with communication and service. All kinds of excuses for their failures. Illegal last minute, contract to document change demands, or my truck doesn't ship out. I am not happy with this company. I would not recommend this company.

Our ancient Outback was in need of another clutch, and I was tired of the work done by our local…read moreSubaru dealer. I brought the car here for the repair and when I got it back it drove better than it ever had before. Great job. Thank you.

I don't write reviews often, but this experience absolutely deserves one…read more From the moment I walked in, the customer service was exceptional--kind, professional, and genuinely respectful. I never once felt talked down to or rushed, which can honestly be rare in automotive situations. What impressed me most was how clearly they explained everything. They took the time to walk me through what was going on, what my options were, and what actually needed to be done (without trying to upsell anything unnecessary). That level of transparency builds immediate trust. They got me in and out exactly when they said they would, and the pricing was more than fair for the quality of service. If you're someone who wants to feel confident you're being treated honestly and respectfully--this is the place. I'll absolutely be coming back and recommending them to others.

Wow, an honest and fair vehicle mechanic, such a rare thing these days. Try them out. Highly…read morerecommended.

I can't say enough great things about this shop! Their service is always quick, honest, and fairly…read morepriced. I have a unique vehicle that's had its share of challenges, and they've consistently gone above and beyond to make sure it's properly diagnosed and repaired. What really sets them apart is their customer service. I'm not even local, but whenever an issue has come up (even if it was completely unrelated to the work they performed) they've always been willing to help, answer my questions, and point me in the right direction. It's hard to find a shop that's this knowledgeable, trustworthy, and genuinely invested in taking care of their customers. I highly recommend them to anyone looking for quality work and exceptional service. They've definitely earned a customer for life!

Advanced is amazing! Had an ongoing but seemingly not repeatable issue with my F150. Dealer…read morecouldn't say what was up with it. Did lots of searching online with symptoms and finally a thrown code that narrowed it down. Ford dealer still couldn't say and their estimate was $3400. Leonard at Advanced took my info, patiently waited for the issues to repeat and then expertly fixed the trans for much less using factory parts. It now runs like new - smooth as new! I'm impressed with their acumen and their professional nature. Thanks Gentlemen!

My car was making a terrible noise whenever I turned. I took it to Straight Line, and they were…read moreable to get it in right away, find the issue, and fix it quickly. Not only did they take care of the problem, but they also didn't try to upsell me or make up issues just because I'm a woman. I really appreciated their honesty and professionalism.

From the owner: About Straight Line Auto – Northern Colorado’s Trusted Family Auto Repair Shop…read more Straight Line Auto is a family-owned and operated automotive repair shop in Greeley, Colorado, proudly run by a father-and-son team. As northern Colorado natives, we’ve built strong community ties and believe in keeping local business, local. Our reputation is founded on honesty, reliability, and a true commitment to our neighbors. We understand how important your vehicle is to your daily life, and we treat every car and truck like it’s our own. Whether you need routine maintenance, advanced diagnostics, performance tuning, or complex engine repair, our certified mechanics deliver expert service you can trust. From oil changes to transmission work, Straight Line Auto provides precision workmanship and dependable results—so you can drive with confidence. At Straight Line Auto, our mission goes beyond fixing cars. We care about the people behind the wheel. That’s why we offer fair pricing, fast turnaround times, and a personal touch you won’t find at big chain shops. When you choose us, you’re not just supporting a local business—you’re joining the Straight Line Auto family.