Best Transmission Fluids of 2026

"After changing out the old transmission fluid in my 2018 RAV4 with 90,000 miles, I tried this Valvoline fluid and it worked like a champ. There were no issues with slippage, and I feel confident about using it at the recommended intervals. It's a great alternative to expensive OEM WS fluid."

"I use this ATF in my 2016 Toyota Prius CVT, and it's been problem-free and cost-effective. I did my research on Prius forums and am satisfied with the result. No complaints about performance so far."

"Bought this for my 1993 Toyota Corolla DX, which had neglected maintenance. I carefully swapped out the old brown fluid, and even after the first replacement, shifting felt smoother. After two quarts, the transmission felt healthier and more responsive. I’d definitely buy it again."

"I’m glad I found this fluid here—it’s OEM quality and gave my customer’s transmission smooth shifting and stable temperature. Highly recommend!"

"This is the exact same fluid that came in my Ford Fusion. I trust it because it’s a quality product that meets Ford standards. My transmission is still running great after the change."

"I only use this for my Transit after trying other brands. With this fluid, it honestly feels like driving a new transmission—shifts are so much better now."

"I noticed my 2021 Chevy Blazer shifts like new again after using this transmission fluid. It was simple to use with zero leaks, and the quality is outstanding. Highly recommend for anyone seeking smoother performance."

"After replacing the fluid in my 2021 Blazer with this, the difference was immediately noticeable—much smoother shifting. The price is also a fantastic deal for a gallon. I do wish I’d bought an extra quart since it took about five, but overall, this made a huge improvement."

"This is the only fluid I trust in my Yukon. I replace it every 50,000 miles, and it's worth it to avoid frequent, messy pan drops. No sense in using cheaper alternatives when this one works so reliably."

"I love that this pump is completely compatible with my POLARIS wide mouth quart bottles, making fluid changes much smoother."

"The pump action is effortless even in cramped spaces, and the included adapters give me versatility for different fluid bottles."

"It’s quick and easy to use, and the clamps really help prevent the hose from slipping off during use."

"I chose this genuine Mopar fluid for my 2010 Ram 1500 with a 5.7L HEMI. The service went smoothly, and now everything runs great. Since the fluid lasts a long time, I feel peace of mind using OEM."

"After using this in my 2022 Wrangler's transfer case, I noticed it shifts into 4 low much more easily and smoothly. It's a solid product and far more affordable than what the dealership charges."

"I recently bought a Chrysler and discovered there was no record of a transmission oil change. After swapping in this fluid, the shifting is much smoother and the transmission works perfectly now."

"After using this fluid for a change, I instantly noticed much smoother shifting and quieter operation in my vehicle. I really appreciate having a universal ATF/CVT option that covers multiple cars, making maintenance much easier. The gallon container is super handy, and as always, Castrol doesn’t let me down when it comes to quality and consistency."

"I put Castrol Transmax ATF/CVT Universal in my 2018 Maxima, and it’s been fantastic for my Nissan CVT. The driving experience is now noticeably smoother and quieter, and the fluid is ideal for regular maintenance. The 1-gallon jug is just the right amount for a full service, and it pours cleanly. Just make sure to check your manual for compatibility, but for me, it’s been a dependable and cost-effective choice."

"I decided to go with Castrol Transmax instead of the expensive dealer options, and after almost a thousand miles, my CVT runs better than ever. The shifting is flawless, and I’m happy I took the chance, despite the dealer’s warnings. So far, so good—no issues at all."

"I used this transmission fluid for my 2006 Tacoma and found it super easy to do a drain and fill at home. Sticking with OEM quality gave me peace of mind, and I only needed three bottles instead of four for the right amount."

"This was the best price I could find for genuine Toyota ATF, and it worked perfectly for my needs. Factory fluid at a bargain—that’s tough to beat!"

"I changed the transmission fluid on my 2013 Highlander V6, and honestly, it was easier than an oil change. The product is exactly what my car needs, and I’m happy with the result."

"I wanted the Ford brand Mercon V specifically for my 02 Escape, and I'm glad I did. After replacing half the fluid with this, my transmission shifts smoother than ever. I’ll be buying another jug soon to finish the job."

"This is the right product for my 2000 Mercury Grand Marquis—and really, any older Ford or Mercury. The viscosity is spot-on, much better than other equivalents out there. Used it for my fluid and filter change and everything works great."

"I did my research and found this is the genuine, fully synthetic OEM Ford Mercon V—perfect for my 2006 Escape Hybrid after reading Ford’s technical bulletins. The 5-quart jug is exactly the amount needed. Price is good, and if you’re a Prime member, delivery is fast."

"The fluid was exactly what I needed—authentic Toyota, well-packaged, and arrived quickly. For the price, it’s a solid deal and I’d definitely recommend buying from this seller."

"I appreciated that this was genuine Toyota transmission fluid, delivered in OEM-branded packaging. It worked perfectly for my car, and I didn’t have to make a trip to the dealership."

"It’s tough to find the original transmission oil these days, but this product came in factory Toyota cartons with all the right part numbers. It’s the real deal and saved me a lot of hassle."

"I picked up this OEM Nissan CVT fluid for my mom's 2014 Versa Note, and the price per bottle beat the dealer by a lot. I wasn't about to risk her transmission with anything but the real stuff, especially with over 150,000 miles on it. After the service, the CVT runs perfectly. Pro tip: use three bottles, not more, to avoid wasting fluid when draining excess."

"I used this for my 2014 Rogue AWD, which is at 170,000 miles and still running strong. The price was good and it's working just as it should."

"This is the true OEM fluid for Nissan. I used it to change the transmission fluid on my 2018 Sentra. Everything went smoothly, and I highly recommend it to other Nissan owners."