Jay's Garage
“Very good communication, got me scheduled quickly and was able to finish what I needed in a day's work.”
Best Transmission Fluid Change & Flush in Portland, OR
24 experts listed · all 24 in Portland · 5 open weekends · 22 rated 4.5+
Data verified November 6, 2026
Hillside Imports
“She was considering selling the car and now she is so satisfied that she is going to hang on to it.”
Integrity Auto: Independent Toyota
“Do the work right or they fix it with a 2 to 3 year guarantee”
Xpresso Lube
“If there is something wrong beyond a quick oil change, they'll take the time to show and explain what's going on and never pressure me to get any services done.”
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Hi-Tech Auto Repair
“I was recommended through a friend and I definitely am glad they referred me to them because it's hard to find a mechanic you can trust.”
MBI Motors
“Great shop, friendly staff, quick and thorough service.”
Listed for drivers in and around Portland, OR, these 24 shops change and flush transmission fluid. What each one says about fluid brands, filters and pricing comes from its own website; ratings and quotes come from public reviews.
Area overview: Portland, OR
All 24 experts we list here are in Portland itself. We have 36 experts in Portland on file; this page shows the highest-rated 24. The experts on this page are rated from 4.3 to 4.9 across 10,503 reviews; all 24 have 50 or more reviews and 22 are rated 4.5 or higher. When customers rate these experts on specific qualities, they most often praise quality (91%), professionalism (87%) and value (65%). The topics that come up most in reviews of the experts on this page are "diagnosis", "communication" and "honest". 5 are open on Saturdays and 1 on Sundays. 11 list staff certifications (ASE) and 20 have a BBB rating of A or A+. 22 have ten or more years of experience, the longest 85 years. 5 offer financing; 1 gives free estimates; 7 are family- or locally-owned and 12 list coupons or special offers. We have a website on file for all 24 of the experts on this page; 21 publish a contact page; 11 list a public email and 8 take bookings online. We count these figures across the experts on this page; hours and prices change, so confirm the details with the expert before you visit.
Do any listed shops offer deals on fluid changes?
12 of the 24 shops list a coupon or promotion. A cheap advertised price is usually a machine exchange with a house-brand fluid and no pan work, so check the fluid specification and whether the filter is included before you book.
Affordable Tire & Brake
“They did everything with utmost professionalism and courtesy.”
Everett Street Autoworks Mechanics
“Professional courteous and prompt in solving my jeep issue”
Steve's Imports
“What is normally an easy task instead required two of their staff and more than a half-hour of fighting because of the car's difficult/poor part design, but in the end they got it - and wouldn't accept any payment and not even a tip in appreciation!”
PDX Automotive
“Love the team at PDX auto- they are always timely with their updates and great at communication.”
Wally & Son Automotive
“I drove there right after calling to check they were open and was done in about 15 minutes - and part of that was probably because I was busy holding the super friendly cat there.”
A & P Specialties
“For 20 years, always the only place to take my Porsche for service, maintenance, or repair.”
Portland Transmission Warehouse
“I was looking for a c clip for my car's overdrive servo and one of the guys pulled it up super fast on their computer and pulled the item fast.”
Marque Motors
“Great reliable place to get your car worked on🙌”
Bradshaw's Auto Repair
“I've been coming to Bradshaw's for about 4 years, and every time I am given the same professional customer service and stellar work.”
Re-Born Automotive
“Not only that, but customer service here is warm and personal, communication is tech-friendly and they provide a shuttle service I thought was a thing of the past.”
Mickey's Automotive Services
“Thank you, for going above and beyond to solve my truck's overheating problem and saving me both time and money.”
Hawthorne Auto Clinic
“When I felt overwhelmed by their service recommendations last year, they so kindly walked me through what was necessary for my safety and what could wait until I could afford it, all without condescending to me.”
Art
“I'll be recommending people here for reliable services.”
Advanced Transmission & Gear
“He went above and beyond working on a subaru outback CVT, which are infamously difficult and expensive, and did all he could to get my car back on the road.”
Metro Car Care Tire Pros
“Professional, honest, timely, great communication, friendly and helpful staff.”
German Formula Auto Repair
“Nick did an awesome job brainstorming and diagnosing a couple issues on my Audi, as well as servicing my vehicle!”
Jolene's Auto Repair & Tire Team
“Dropped it off in the morning and they were very communicative throughout the whole process.”
A-1 Automotive & Fleet
“I have been going here for over two years with my aging Prius and they are routinely able to find time to minimize my days without a car while also helping me to make informed and efficient choices.”
Why these companies made our list
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