In the heart of Trinidad, Colorado, ER Auto & Diesel, LLC stands as more than just a repair shop — it’s a trusted name built on hard work, skill, and family values. Whether you’re driving a daily commuter, managing a fleet of service trucks, or maintaining heavy-duty equipment, you can count on this local team to keep you moving with confidence.
This is the story of the people who power ER Auto & Diesel and how their dedication has made this shop a vital part of the Southern Colorado and Northern New Mexico community.
A Family-Owned Shop Built on Integrity and Expertise
Established in April 2024, ER Auto & Diesel, LLC may be one of Trinidad’s newer repair facilities, but its foundation rests on years of experience and a shared commitment to honesty, precision, and customer care.
Located at 1104 E. 9th Street in Trinidad, CO, the shop proudly serves drivers across Southern Colorado and Northern New Mexico — providing dependable repair and maintenance for everything from passenger cars and trucks to law enforcement vehicles, emergency service units, trailers, and heavy-duty machinery.
When you bring your vehicle to ER Auto & Diesel, you’re not just another ticket number; you’re part of a growing family that believes in doing things the right way, every time.
Meet Erica & Rico: The Heart of ER Auto & Diesel
Rico Olguin – Co-Owner & Lead Technician
Rico is the driving force behind ER Auto & Diesel’s exceptional service quality. As an ASE Master Certified Technician, TIA Certified Professional, and Fire Apparatus Certified Technician, he brings over a decade of hands-on expertise in both auto and diesel repair.
From complex diagnostics to on-site emergency repairs, Rico approaches every job with precision and care. His technical knowledge, combined with a problem-solving mindset, ensures every vehicle leaves the shop running at its best.
Rico’s philosophy is simple: do every repair as if your own family’s safety depends on it.
Erica Olguin – Co-Owner & Administrator
Behind every great technician is great organization — and Erica ensures everything runs smoothly from start to finish. With over five years of industry experience, she handles operations, customer communication, and scheduling with unmatched professionalism and warmth.
Her attention to detail ensures every customer is informed, supported, and comfortable throughout the repair process. Whether she’s managing quotes, coordinating mobile service, or answering questions, Erica’s dedication keeps the shop’s commitment to transparency alive and well.
Why Locals Trust ER Auto & Diesel
ER Auto & Diesel isn’t your typical repair shop. It’s a family-operated, certified facility with a customer-first mindset — one that blends technical mastery with genuine care.
Here’s what sets them apart:
- ASE Master Certified & TIA Certified Technicians
- Fire Apparatus Certified for emergency service vehicles
- 3-Year / 36,000-Mile Nationwide Warranty
- Carshield Authorized Repair Facility
- Financing Options Available through Synchrony Auto Repair
- 24/7 Mobile Service – because breakdowns don’t wait for business hours
- Fair, Competitive Pricing and transparent communication every step of the way
From general auto repair to diesel diagnostics and heavy-duty equipment maintenance, the team’s expertise runs deep — but their mission remains simple: to provide honest, high-quality work that keeps you safe and confident on the road.
Around-the-Clock Service You Can Rely On
Can’t come to them? They’ll come to you.
ER Auto & Diesel offers 24-hour mobile auto and diesel repair throughout Southern Colorado and Northern New Mexico. Whether you’re stuck on the roadside, at a job site, or managing a fleet that can’t afford downtime, their technicians are ready to help — equipped with the tools, training, and dedication to get you back on the road quickly and safely.
Their mobile repair process is designed for your convenience:
- Request a Quote – Contact the team for a shop or mobile service estimate.
- Scheduling & Approval – Approve the work and schedule at your location or their Trinidad shop.
- Inspection & Digital Report – Receive a detailed report outlining any findings.
- Repair & Follow-Up – Once approved, repairs are completed promptly with clear communication every step of the way.
Serving More Than Just Vehicles — Serving the Community
As a local, family-run business, ER Auto & Diesel takes pride in giving back to the Trinidad community that supports them. Whether it’s helping travelers passing through town, keeping local law enforcement fleets ready for duty, or maintaining trucks that keep Southern Colorado running, they see every repair as a contribution to the greater good.
Their philosophy is built on three key pillars:
- Integrity — Honest work, fair pricing, and transparent service.
- Precision — Certified expertise in every repair, big or small.
- Customer Care — Treating every client like family, because trust is earned, not assumed.
Keeping Southern Colorado Running — One Repair at a Time
At ER Auto & Diesel, excellence isn’t just a promise; it’s a way of doing business. Whether it’s a late-night roadside call, a full diesel engine rebuild, or routine maintenance for your family SUV, their team brings the same dedication to every job.
They’re proud to serve Trinidad, Southern Colorado, and Northern New Mexico — keeping drivers, fleets, and emergency services operating safely and efficiently.
If you’re looking for a shop that values skill, honesty, and family-driven service, ER Auto & Diesel, LLC is ready to help.
Contact them today to schedule an appointment, request a quote, or get immediate roadside assistance. With a 3-year/36,000-mile warranty and certified technicians on your side, you’ll always have a team you can trust — wherever the road takes you.