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.

These guys are awesome i have a 2015 toyota 4runner that I took to Mcdonald toyota they screwed…read moremore stuff up then anything these guys took the time and figured it out there prices are fair and they do excellent work thanks

From the owner: mas de siete anos sirviendo ala comunidadread more

I have only dealt with one of the owners, Nathan, but have had nothing but the best service. He…read morehelped me out when I needed servicing done on my diesel and was able to complete extensive projects in the matter of two days. Killswitch returned my vehicle running the best it had in years. Honest people, fair prices, and top-notch mechanics. I can say with sincerity that I've found my preferred Colorado diesel and regular automotive mechanic.

Thank you so much for such great service and on a Sunday. This shop responded quickly to my request…read morefor service, fixed my fuel line and charged a reasonable fee. We would recommend this shop to anyone.

First I would like to thank my mom for paying the bill. If…read moreI could give 10 stars I would. Very knowledgable and friendly staff. They kept me up to date on the repairs I wanted done and future concerns they noticed. I was never pressured into a recession. They offered me recommendations to keep me vehicle running correctly. During the process the emailed me reports with photos. They earned my business and my family's business. Thanks you to Todd and the entire staff. Have a safe Holiday season!! Best reguards, Jason

BG Automotive? More like "BS" Automotive. The one star is for an oil change (since 0 stars is not…read morean option). BG Auto IS SHADY, smooth talking for sure, but A RIP OFF. STAY AWAY. This is a lengthy description, but it's not half the story. To all the glowing 5 star reviewers - check your invoices. The problem started with their "courtesy inspection" accompanying the oil change, where half of their recommendations (deemed red flag "Requires Immediate Attention") ultimately turned out to be mostly unnecessary and absurdly expensive. That became apparent only after paying. My bad, of course, I obviously should have asked to see a detailed estimate prior to the work. The initial estimate did not provide parts or labor detail & appeared to indicate the work was part of a "complete tune up." Upon dropping off the truck, "Service Advisor"Jesse stated that Champion copper spark plugs had been factory installed on 2013 RAM 2500s, so that was best & what BG would install. Classic BAIT & SWITCH: BG charged $508.48 for a set of 16 plugs! When I challenged the bill, asking if "kryptonite plugs" were installed instead, Jesse indicated, no, the copper plugs were used... then he checked his computer & stated, actually no, in fact the [far] more expensive NKG iridium plugs were installed. "They're much better because they last up to 100,000 miles," he emphasized. I replied, "Great. BG just changed out NGK iridium plugs that had been in the engine already, with only 60,000 miles on them." The WORK WAS COMPLETELY UNNECESSARY. Also on the bill was a "TOTAL FEES" charge of $175.77 (yes, that specific), but with ZERO DETAIL of what those fees were for or how they were calculated. Jesse couldn't provide that detail either, "It could be shop supplies, or hazardous disposal - you know, those state regulations - it could be almost anything." Note there were no hazardous materials involved with this work, such as a tire or battery disposal fee. (Google search indicates: In Colorado, shop fees are usually calculated as a percentage of the labor cost (e.g., 5-10%) and are often capped at a maximum amount (e.g., $25 to $50). Also, Colorado statute requires the repair invoice to have some kind of description of these fees, and further, "a description of each part by name and identifying number." Nowhere on the invoice was the type of plugs installed specified, either. You get NADA DETAIL from BS Automotive. Finally, while repair shops typically mark up parts 70-100% of wholesale price, BG is marking up parts in the ballpark of 100% of retail price. (If you can pry out of them the parts brand they say they'll use, you can easily verify this with a Google search at their counter.) They should be ashamed and embarrassed for what they're charging the hardworking folks of Longmont. When pressed to justify the charges, Jesse insisted they were competitive, "within 5% of other local repair shops." More BS. Comparing apples to apples (parts & labor only), the local dealership quoted over $200 less, the Loveland repair shop I've frequented in the past was over $400 less (obviously, checked after the fact...). If the handful of other shops Jesse quoted are actually within 5%, they are ripping us off too. Jesse would not budge on the final bill, but he did offer to comp me an oil change. As if! I had already told him I would never set foot in BG Automotive again. However, I would take a call from the BG Automotive (Owner) to provide the rest of the story about this pathetic BG encounter.

I paid Dustin 13k to build a Mitsubishi evo X motor, it took him a year and eight months to build…read moreit. The motor was installed into the car and started up and instantly began to not run right. I had to take the motor back out of the car and take it completely apart again to find that the head was absolutely butchered. The intake and exhaust valves where lose, the decking was off, valve job was crooked, and the threads were taped crooked. On top of that the motor had rust in the bottom of the piston walls and an oil sprayer was broken off. The bearing are completely trashed from 30 minuets of run time. They won't respond to my email about it so I will be taking them to court. I you or anyone you know has a car or motor over there I would go grab your shit and run from that place. read less

From the owner: We working on all makes and models, state of the art equipment. All in house engine repair and…read moremachining start to finish

These guys are the best!! Anytime I have issues with my car they are able to get me in quickly and…read morefigure out the best plan for the issue at hand. As a 68 year old woman I have always been worried I could be taken advantage of on things like mechanical issues that I have no clue about. I always feel safe and cared for like i'm family when I go to them. The prices seem reasonable and I know they have my best interest at heart. Use this company for all your auto repair needs... You Won't be sorry!!! Midge Tucker Owner of Midge's Pet Grooming

Brought my car here via AAA since my car broke down nearby. They were 110% professional the entire…read moretime. They made a mistake, but immediately owned up to it, then went WAY above & beyond any other shop might do to make up for it. I wish they were closer to where I live, otherwise I would give them all my business. Especially big shoutout to Colin for being such a great guy about it all!

They never finished repairing my camper trailer. I had to threaten them with a lawsuit just to get…read morethem to finish sealing the windows and trim. The workmanship is substandard, I could have made it look nicer, and I have never repaired an RV. They burned a hole in the flooring and got sealant on the interior walls. They never put my decals back on. Jessica screamed at my insurance agent multiple times, to the point they almost called law enforcement. If you value your camper, take it elsewhere.

needed my roof painted and my hood painted and had a hard time finding anywhere willing to do such…read morea small job until i put the service request on yelp. mike was quick to respond give me a quote and took my car in the next day and had it done in two days paint job was decent at a good price. 5 stars for willingness to do the job when nobody else would