Meet Erica & Rico - The Team Behind ER Auto & Diesel, LLC
About ER Auto & Diesel, LLC
Local. Reliable. Certified. Family-Owned.
Established in April 2024, ER Auto & Diesel, LLC is a family-owned and operated auto and diesel repair shop located at 1104 E. 9th Street, Trinidad, CO. We proudly serve customers across Southern Colorado and Northern New Mexico, offering dependable, top-tier repair services for a wide range of vehicles—from personal cars and trucks to law enforcement vehicles, emergency service units, trailers, and heavy-duty equipment.
We’re not your average auto shop. With a strong foundation in integrity, precision, and customer care, our goal is simple: to keep you moving with peace of mind.
Meet the Owners
Rico Olguin, co-owner and lead technician, is an ASE Master Certified Technician with over 10 years of hands-on experience in the auto and diesel industry. He’s also TIA Certified and a Fire Apparatus Certified Technician, bringing expert-level service to every job.
Erica Olguin, co-owner and administrator, brings over 5 years of industry experience, ensuring seamless service, transparent communication, and exceptional customer support from start to finish.
What We Offer
- General Auto, Truck & Diesel Repairs
- Emergency & Fleet Vehicle Maintenance
- Heavy-Duty Equipment & Trailer Service
- Honest, High-Quality Work at Competitive Prices
- TIA Certified
- Financing Available
- ASE Master Technician
- Fire Apparatus Certified Technician
- Carshield Authorized Repair Facility
- 3-Year / 36,000-Mile Nationwide Warranty
We believe in treating customers like family and delivering service you can trust. Whether you’re broken down on the roadside or need regular fleet maintenance—we’ve got your back.
Our mission is to provide exceptional customer service, honesty, & accurate work.
Can't come to us? We can come to you!
Proudly serving the Trinidad community, Southern Colorado & Northern New Mexico.
Request & Estimate Approval
Contact ER Auto & Diesel to request a quote for shop or mobile service. Once approved, we prepare to get your vehicle back on the road quickly.
Scheduling & Service Location
We schedule your service at our Trinidad shop or coordinate a convenient time and location for mobile repairs across Southern Colorado.
Inspection & Digital Report
Our certified technician performs a thorough inspection before starting any work. You’ll receive a detailed digital report outlining any findings.
Repairs & Follow-Up
Once you approve the work, we carry out the repairs with precision. If additional work is required, we’ll schedule a follow-up at your convenience.
Affiliations and Certifications
