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3 of these experts are based in Lake Oswego; the others serve Lake Oswego from towns including Portland (9 mi), Beaverton (7 mi) and Tigard (4 mi).
6 open weekends · 21 rated 4.5+ · 2 show a license
The 24 experts on this page are rated from 4.2 to 4.9 across 8,515 reviews; all 24 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these experts on specific qualities, they most often praise professionalism (94%), quality (82%) and value (76%). The topics that come up most in reviews of the experts on this page are "diagnosis", "honest" and "communication". 6 are open on Saturdays and 1 on Sundays. The services the experts on this page list most often on their websites are oil change (6), brake repair (4), engine repair (4), timing belt replacement (3) and transmission repair (3). 2 show a license on their websites; 9 list staff certifications (ASE) and 21 have a BBB rating of A or A+. All 24 have ten or more years of experience, the longest 56 years. 6 offer financing; 1 gives free estimates; 12 are family- or locally-owned and 17 list coupons or special offers. We have a website on file for all 24 of the experts on this page; 22 publish a contact page; 12 list a public email and 11 take bookings online. 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.
Data verified October 7, 2026
Listed for drivers in and around Lake Oswego, 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.
An online booking link appears for 11 of the 24 shops. Give them the year, make and model when you book, because the fluid has to be on the shelf and some specifications are ordered in rather than stocked.
