Honestly words can't even describe how helpful and informative , professional, and sweet this mechanic is he did my oil change on my Mercedes yesterday . He's so informative and kind , he accommodates and helps his customers. He understands that a lot of other mechanics try to upsell and recommend some services They probably don't even need. He's so informative is very honest with you. Really cares about his customers. I don't regret it. I'm in Fontana and it was honestly worth the drive for me. I recommend literally anybody to go to this mechanic and his coworker. Henry are so sweet so professional I don't think I've ever met a mechanic with this top-tier professionalism and they know what they are doing. Kerar thank you for making my experience at loyal performance auto the best! read more

My Starter was going bad on my work truck and I needed someone that could fix it fast and get my truck up and running quickly. Kerar ( The Owner) @ Loyal Performance had my starter replaced in under an hour. That's right I WAS IN N OUT WiTHIN AN HOUR! This is the best kept secret of mechanic shops in Rancho Cucamonga and the Upland area by far top-notch qualities service, Honest, Reliable and Fair. I am a small business owner and I recognize hard work dedication and what it takes to provide best of the best quality service. So I am leaving this review so for any future customers can read and know that they're dealing with the best when they deal with Loyal Performance Auto. Hands-down, best value by far from the other quotes that I got. Lifetime customer here read more

I had such a great experience at this mechanic shop! I came in for an oil change, and he also did a free diagnostic, which I really appreciated. The service was quick, professional, and affordable. What stood out the most was how honest and friendly the the owner, Kerar was. He took the time to explain everything clearly and didn't try to upsell or pressure me into anything unnecessary. That kind of transparency is hard to find these days. I truly feel like I can trust this shop with my car, and that gives me a lot of peace of mind. I highly recommend this shop to anyone looking for reliable and honest service. I'll definitely be coming back! Thank you Loyal Performance! read more

I had an excellent experience getting my Mercedes CLA serviced here. From the moment I walked in, the team was professional, honest, and clearly knowledgeable about luxury vehicles. They took the time to explain exactly what was wrong, gave me a fair and transparent estimate, and completed the repair faster than I expected. My car is running perfectly now--smooth, quiet, and like new again. It's not always easy finding a mechanic you can trust with a Mercedes, but these guys definitely earned my confidence. Great customer service, quality work, and fair pricing. Highly recommend to anyone looking for reliable and skilled technicians! read more

My check engine light came on so I took my car (Honda Accord) to Loyal Performance Auto to figure out the issue. They offer free diagnostics which helped me save a lot of money compared to getting it diagnosed at the dealership. Kerar (the mechanic) stated I needed to replace my spark plugs and ignition coils. I dropped off the car and was surprised how fast Kerar completed the job. The car is driving smoother than before and the repair has increased my mpg. Overall, I'm very satisfied as the price was a lot cheaper than the dealership and happy how fast Kerar completed the repair. I'm coming back for future auto repair work! read more

I took my car (Honda Accord) to Loyal Performance Auto as the check engine light came on and noticed they offer free diagnostics. The mechanic, Kerar, was very helpful and texplained the issue to me clearly as I had to replace my spark plugs. He's very professional and told me he has over 10 years of mechanical experience working on European and Asian vehicles. The price was a lot cheaper and the job was completed a lot faster than taking it to a dealership. My car is driving a lot smoother than before with increased mpg. I'd definitely come back and recommend Loyal Performance Auto for all your automotive needs! read more

Been looking for a new and honest mechanic in the area and I believe I found one at Loyal Performance Auto. I've had the check engine light on for a while and wanted to get it diagnosed and fixed. Luckily, they offer free diagnostics which was nice as other mechanic shops typically charge for this. The mechanic named Kerar told me I needed to replace the oxygen sensor. I dropped off the car and picked it up within a few hours so I was happy the job completed on the same day. The price seemed very fair as well. I recommend this business and would come back in the future. read more

Keraar is a fantastic mechanic on top of being a solid guy. He was able to do my right side strut mounts and rear anti-roll bar bushing on my 2013 Audi TTRS for a fraction of what the dealership would have charged me. It was easily 50% cheaper. You should definitely roll your car in here. Keraar will take care of you and your wallet, and he'll do it quickly. I had to get this done before doing a road trip to my next gig and he was able to do it the day of. I heard about this mechanic from a dude I see a lot at a smoke shop and I'm glad I listened. read more

I needed my radiator replaced and found a great place to get the job done. The owner, Kerar, worked on my car and guided me through everything I wanted to know about what the car needed. Full transparency. Even when he found that my AC condenser needed to be replaced while working on putting in a new radiator, he didn't charge me any extra labor! Prices are very fair and the communication is 10/10. If something is wrong with your car and you're in this area, this is a great place to go. read more

I took my Mazda 6 to Loyal Performance Auto after hearing noises while turning. They offer free diagnostics and the mechanic, Kerar, quickly identified the issue and explained everything clearly. I ended up replacing both CV axles and the car now drives smooth with no noise. Overall, great service, fast turnaround, and much more affordable than the dealership. I highly recommend for all your automotive needs! read more

My car, a 1985 Toyota MR2, wasn't passing smog as it is pretty old. Kerar helped me diagnose the issue, he went through checking TPM, replacing the O2 sensor, and did a lot of research for my car. He told me that it was my EGR valve. He was completely honest and transparent from the beginning. Highly recommend going to loyal performance auto for anything you need with your car! read more

The owner and master technician of this shop Kerar is very honest, trustworthy and does quality work. He works on my very rare and expensive european cars and I will not go anywhere else. He is humble and a genuinely great person to deal with. What I truly love about his shop is that he truly cares about my cars and works on them as if they are his own. read more

I got an oil change, brakes and rotors replaced and bushings replaced. I love my car and it is a relief to know that there are people willing to be honest and wanting to take care of their customers. Kerar did a superb job and took his time in taking care of my baby! read more