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⚙️ Keep your ride shifting like new — don’t let buildup slow you down!
Sea Foam Trans Tune Transmission Treatment is a powerful 16 oz additive designed to dissolve gum and varnish buildup, control moisture, and lubricate critical transmission components. Compatible with most automatic transmission, hydraulic, and power steering fluids, it protects seals and gaskets while enhancing fluid system performance and longevity.




| ASIN | B0002JN2F4 |
| Best Sellers Rank | #24,250 in Automotive ( See Top 100 in Automotive ) #1 in Transmission Flushes |
| Brand | Sea Foam |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,497) |
| Date First Available | June 15, 2006 |
| Exterior | White |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | TT16 |
| Manufacturer | Sea Foam |
| Manufacturer Part Number | SFM-TT16 |
| Model | TT-16 |
| Product Dimensions | 7.65 x 2.5 x 2.5 inches |
| Special Features | Non Abrasive |
B**L
Buy it, it works.
Ordered this to try and "clean up and free up stuck/dirty solenoids" in a BMW transmission. Added this to the transmission and drove it around the neighborhood to get the fluid flowing. THIS STUFF WORKS!!! The transmission has 166k miles and fluid has never been changed. The transmission would not downshift when going up hills and would give a code for the solenoid. I bought this to clean up the transmission and free any stuck parts before doing a fluid change and this stuff did the job and then some. Transmission is shifting great and acts like a new transmission. Great value for a product that works.
F**Y
Real Deal. Pretty awesome stuff
My Dad swears by this. He had a Ford Tempo would drop into neutral (torque converter slipping) at red lights until you rev to 3k rpm then jump into gear chirping tires. And a Dodge caravan that trans slipped. Both vehicles he would add 1 quart and they would be fine from 1, 3, 6 months. Then slip again eventually he would add another quart. Sounds ridiculous but if you aren't ready to drop the $ and the transmission, or scrap the car yet. This Stuff Works.
J**R
Some fixes in a can WORK
Have a dodge 2500 that won't shift past second gear? Have a 99 Ford F-150 that slips in between gears? Have an 07 Maxima with a shuttering torque converter? Buy this and erase all those issues. I did. Works great and is getting harder to find because it actually works wonders.
S**A
works
I got this to make the steering wheel in my old civic hatchback smoother. I pumped out a bit of fluid from the power steering tank, added half a bottle of this stuff, ran the car 20 minutes while moving the steering wheel back and forth. Then I drove my car about 30 minutes and topped off the power steering fluid with 'lucas power steering fluid+conditioners'. The wheel moved so much better, so I'm happy. I docked a star because when I pulled the white tab off the mouth of the bottle, a bunch of purple fluid came out and got all over my hand that was holding the bottle. Made me mad, especially because my toddler was at my hip on the other side. Not really an issue with functionality of the fluid, just pressure in the bottle, I guess. So, wear gloves and open somewhere that you're ok with potentially getting dirty
E**N
Excelente
Excelente
B**N
Amazing stuff, look no further, this is the only transmission additive that works!
I am usually not compelled to write a review, but this stuff is amazing. I have a 2010 Ford Fusion with roughly 55k on the clock, and I've flushed my transmission fluid 3 times using factory fluid, other expensive full synthetic fluids over the years and was still left with an unresponsive and unpredictable transmission... that is until I found this stuff. Poured about 9 ounces of this stuff into the dipstick tube and drove around the block, already noticed a HUGE improvement. After driving vehicle just another 30 miles, the car now has restored performance to the pedal and coasts along with little gas. My MPG average has started increasing substantially too. I have no doubt I will be getting at least the rated 25mpg now and could barely get 21mpg before! This might be the only additive that works for your transmission. This stuff must have cleaned up the varnish deposits and dissolved any sludge in the valve body - car shifts better than off the showroom floor (of course Ford released many updates to the transmission software over the years too). Nice job Seafoam!
R**H
GREAT STUFF
700 r4 transmission was slipping in passenger gear i pit it in drove about 30 miles couldn't tell anything parked the car about a week the next time I drove it absaultly no slipping this stuff is AMAZING
L**E
Worked for me as a fix and preventative
Used this for the first time on a 16yo CRV @ 198K miles. For many years I never did transmission flushes on the car. I changed the tranny fluid twice in the lifetime of the car, and did a flush at 130k miles. It runs well after all these miles, but I noticed it had developed a slight vibration that can be felt in the dashboard and generally the front of the car at certain speeds (35, 50, and 85). Also sometimes it would have trouble switching into 3rd gear on an incline. I started using this about 2 months ago, and I can *definitely* see an improvement. The switching 'issue' is almost gone, and the vibration has all but disappeared -- I used to be able to induce it easily by cruising at exactly those speeds, but no more. Another thing that helped greatly was their regular Sea Foam for the engine and gas -- I used it in the oil and gas at every filling, and it *dramatically* reduced oil consumption of the car, it's like brand new at this point, after 2 years of regular treatments. I personally use these two products constantly in the vehicle. I use about 1/5 to 1/4 of the recommended amount, but I leave it in for treatment and prevention. Use my experience/advice at your own risk, as it does not recommend using it long term on the bottle. I have, however, in much decreased quantities, as I said, and it has cleared up oil consumption and tranny problems in two vehicles of mine now with steady, low dosage use over several years.
C**S
Steering hydraulics cleaner.
I used the product with the aim of cleaning up my steering rack hydraulics. It made a slight improvement to the racks workability. It was my cheap option before choosing to replace the rack.
S**.
Accord 99
Los Honda Accord 6ta generación son famosos por su transmisión que se deteriora muy rápido. La mía ya pateaba fuerte y no metía segunda. Le hice el cambio de aceite junto con este aditivo (siguiendo las instrucciones) y el carro funcionó perfectamente 5 minutos después de dejarlo trabajando. Volvieron a. Entrar los cambios como se supone debe trabajar la transmisión!
M**D
منتج بطل
ممتاز. اصلح لي المشكله. فورد كروان فكتوريا. كلهم قالوا يحتاج توضيب بس المنتج بطل
S**T
Really effective hydraulic system additive. Quality USA made product.
Really did the business on my 33 year old PS system. Steering became heavy & notchy on direction change (possible sticky/partially blocked valve body?) so flushed the system out, added new fluid then poured in this additive. Smooth, quiet operation within 10 mins, with more steering assistance in the 12-years I've had the car. Worked a treat for me!
S**.
Effective
Used on two 13 year old vehicles. Power steering noise reduced and steering became free. Am changing the power steering oil after 200 kms of running. Will add a fresh batch of this oil to keep the system in shape.
Trustpilot
1 week ago
2 weeks ago