“I've been bringing my cars here for 6 years. They're honest, fair, and always explain what needs to be done vs. what can wait. Rare to find a shop you can trust completely.”


Experienced technicians. Transparent pricing. No surprises — just honest work done right the first time.
WHY CHOOSE US
We do things differently — and our customers notice.
Written estimates before any work begins. We call if anything changes.
Most routine services completed same-day. We respect your time.
We show you what we found — often with photos. You decide what gets done.
Competitive rates without cutting corners on quality parts or workmanship.
Our technicians explain every repair in plain language. Your car is in good hands.
We live in this community. Our reputation is everything to us.

OUR SERVICES
From routine maintenance to complex diagnostics — our experienced team handles it all with precision.
Advanced computer diagnostics to pinpoint issues fast. We fix it right the first time — from sensor replacements to complete engine work.
Learn More
Pads, rotors, calipers, and ABS repair. Your family's safety is our top priority — every brake job includes a road test.
Learn More
Conventional, synthetic blend, or full synthetic with multi-point inspection included. Premium fluids and OEM-spec filters.
Learn More
From A/C recharge to compressor replacement — stay comfortable year-round. Full climate system diagnostics.
Learn More
Shocks, struts, alignment, and tie rods. Restore smooth, confident handling and eliminate uneven tire wear.
Learn More
Dead battery? Dim lights? Our electrical diagnostics find what others miss. Starters, alternators, and complete systems.
Learn More

7AM
Doors Open WeekdaysFree
Inspection With Every Oil ChangeSame Day
Most Routine Services8–3
Saturday HoursABOUT US
Radiator Auto was started by Dave Kowalski, a lifelong gearhead who got tired of watching shops overcharge and underdeliver. He opened Radiator with a simple promise: treat every car like it's your own.
Today, our team of experienced technicians serves the greater Portland area with the same values Dave started with — honesty, quality, and respect for your time and budget. We're not a chain. We're your neighbors.
Family-owned and operated
Factory-level diagnostics
All makes and models
Written estimates — always

CUSTOMER REVIEWS
“I've been bringing my cars here for 6 years. They're honest, fair, and always explain what needs to be done vs. what can wait. Rare to find a shop you can trust completely.”

“My check engine light came on during a road trip. They got me in same-day, diagnosed the issue quickly, and had me back on the road by afternoon. Lifesavers.”

“After the dealer quoted a big repair, I brought it here for a second opinion. Turned out I only needed a much smaller repair. They could have easily taken advantage.”

“Clean waiting room, fair prices, and they actually finish when they say they will. I recommend Radiator Auto to everyone I know.”

“They showed me photos of what they found under my car. I could see the worn parts myself. That kind of transparency is why I'll never go anywhere else.”

“Brought my daughter's car in for a weird noise. They found it in 20 minutes, showed me the issue, and fixed it. The dealer wanted to keep it overnight and bill by the hour.”

DON'T IGNORE THESE
Catching problems early saves you money. If you notice any of these, bring it in today.
Could be minor or serious. We'll diagnose it — don't guess.
Metal-on-metal means damage is happening now. Don't wait.
Alignment, tire, or suspension issue. Causes uneven tire wear.
Burning, sweet, or rotten egg smell? Something's wrong under the hood.
Oil, coolant, brake fluid, or transmission fluid — all need immediate attention.
Engine misfires, bad sensors, or fuel system issues. We'll find it fast.

HOW IT WORKS
From drop-off to pick-up, we keep you informed every step of the way.

Book online or call. Same-day appointments often available.
Bring your vehicle in. Early drop-off available before we open.
Our techs perform a thorough inspection and computer diagnostics.
We call with findings and a clear estimate. No work without your OK.
Experienced technicians complete the work to factory standards.
Quality-checked, road-tested, and ready. We explain what was done.
FAQ
Quick answers to what our customers ask most.
Yes — our technicians service all domestic and import vehicles, from daily drivers to luxury cars.
Most routine services are completed same-day. Larger repairs typically take 1-2 days. We'll give you a clear timeline upfront.
We accept both! Appointments hold a time slot for you, but walk-ins are welcome. For oil changes and inspections, no appointment needed.
CONTACT US
Call us directly or fill out the form below. We'll get back to you within the hour during business hours.