Honesty Automotive
“My family and I have been using Josh's services for all things auto repair for several years now, and have never once been disappointed with the service we have received from him and his team!”
Best Transmission Fluid Change & Flush in Missoula, MT
19 experts listed · 11 in Missoula · 4 open weekends · 16 rated 4.5+
Data verified October 16, 2026
Greg's Trans-Electric
“*As a 19 year old female I did not feel unwelcome or taken advantage of at all which is something I know some women are afraid of when seeking mechanical work*”
Transolution Auto Care Center
“I would highly recommend anyone to bring their vehicle into Transolution Auto because of their customer service and willing to help anyone who comes into their doors.”
Peak Auto Repair
“They got me in the next day, they have great communication with text messaging and by phone and did a great job on the work, cheaper than the price they quoted!”
Ucdi Automotive & Transmission Service
“We had our catalytic converter stolen while parked at the Ravine Creek trailhead, and Daryl, the owner, had me bring the truck in that same day (a Saturday).”
Karl Tyler's Express Lube
“They're also very clear about explaining what's wrong with your vehicle, what needs to be done, and will actually ask you if you want x and y serviced before doing anything.”
Listed for drivers in and around Missoula, MT, these 19 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: Missoula, MT
11 of the 19 experts we list are based in Missoula; the other 8 serve Missoula from towns including Lolo (8 mi), Hamilton (43 mi) and Florence (17 mi). The experts on this page are rated from 4.2 to 5.0 across 1,870 reviews; 12 have 50 or more reviews and 16 are rated 4.5 or higher. When customers rate these experts on specific qualities, they most often praise professionalism (92%), quality (79%) and value (74%). The topics that come up most in reviews of the experts on this page are "diagnosis", "fair" and "honest". 4 are open on Saturdays. The services the experts on this page list most often on their websites are air conditioning (3), belts & hoses (3), brakes (3), cooling systems (3) and diagnostics (3). 4 list staff certifications (ASE) and 2 have a BBB rating of A or A+. Domain records put 7 websites of the experts on this page at ten or more years old; the oldest dates from 2002. 2 offer financing; 2 give free estimates; 2 are family- or locally-owned and 8 list coupons or special offers. We count these figures across the experts on this page; distances are straight-line, and hours and prices change, so confirm the details with the expert before you visit.
Which shops listed for Missoula have Saturday hours?
Saturday opening is listed for 4 of the 19 shops. This is planned maintenance rather than a breakdown, so a Saturday slot suits it well and the car is usually back to you the same morning.
Master Technician
“Been going to Master Tech for all my work on my Camry and their service is great every time and I also commend the front desk guy Will who has excellent customer service and makes everything easier.”
Outlaw Diesel & Auto
“The owner, John, replaced the O-ring and topped up the oil in time for our departure from Camp Melita for the 500+ mile trip back to Bountiful, Utah on the 22nd.”
Bob Gugisberg Auto Repair
“My family has been bringing our cars to Bob Gugisberg Repair for about 25 years.”
Northwestern Repair
“Does good work”
Montana Transmission Services
“Transmission was going out on the truck, didn't have time to wait days to have it fixed; but this shop took care of it in a matter of a couple hours; moving overseas & trying to get our stuff moved, didn't overcharge, great customer service!!!”
Lolo Xpress Lube Inc
“The only place I take my vehicles, they are quick, honest and after purchasing my Corvette they pointed out some items that needed looking into such as the air filter housing had broken off.”
Peak Automotive Service
“Randy worked on my Corvette, spent some time checking out the problem and kindly explained the problem I was having was from a previous experience I had with another car place.”
Executive Auto Service
“He will share ALL details about your car, even potential problems that are extremely unlikely, just so you know and can make the best decision on where to go from there.”
K G Express Lube
“I don't want to suggest this place so I don't have to wait for everyone else, but I definitely do suggest coming here for oil changes if you're in the Bitterroot or driving through Stevi 😁 …”
Lube Quick Inc
“Quick, friendly but watch the upsell.”
K-O Auto Inc.
“KO Auto was closed for the weekend but I emailed them my situation and they were able to quickly diagnose and repair my car on Monday when they opened!”
Oil Can Carey's
“Colton takes care of all my regular vehicle maintenance: oil changes, light bulb replacements, air filter changes, and even a transmission fluid changes!”
M & M Trans & Auto
“They are a very busy shop because of this and can't always get you taken care of instantly but if you want good quality work done at fair prices they are the bomb for transmissions, etc...”
Why these companies made our list
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