





⚡ Shift into smooth — don’t let your transmission hold you back!
Sea Foam Trans Tune Fluid System Treatment (16 oz) is a powerful, non-abrasive formula designed to dissolve gum and varnish buildup in automatic transmission and power steering fluids. It safely cleans valve bodies, shift solenoids, and actuators without harming seals or clutch materials, restoring smooth shifting and prolonging fluid system life. Compatible with conventional and synthetic fluids, it’s a trusted solution for preventing costly transmission repairs.




| ASIN | B0002JN2F4 |
| Brand | Sea Foam |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,575) |
| 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 |
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.
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.
M**K
Over 180k miles
I was given a 96 Nissan Altima with 140k miles. It didn't shift the quickest and you could tell that although it drove, you had to be gentle with it - it wasn't responsive, didn't shift immediately, went clunk sometimes, and sometimes would slip. The previous owner hadn't maintained it like he should and it was in some pretty rough shape, but it was free and it drove. I added some of this stuff and it was amazing how much it improved - quieted down, shifted much better, drove much better - I could floor it and feel some real power. After about 20k more miles I had the fluid taken out and refilled, and then around 160k it started having issues again, so I added more of this and it quieted everything down and worked great. Finally around 188k miles (still on the origial transmission) it began to have major issues indicating mechanical teardown. This isn't going to fix something that is mechanically broken but if it isn't shifting well or is noisy, this definitely made a marked improvement. If it's high milage and not well maintained and having more major issues, but still mechanically sound, you might want to put this in, drive it a couple hundred miles, and then do a flush and filter replacement. That was even more amazing for me, and ultimately it got me another 44k miles and 2 years.
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
R**W
As advertised
Arrived sooner than expected and was exactly as advertised
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
W**F
Shipped fast
This worked well and it's cheaper on Amazon
E**R
Break down the gummy stuff left over.
It will break down the gum formed in transfer case. I also did a combination of ProLube brand and only added one ounce of that. Otherwise the Seafoam transfix was added with no measurement. Just using common sense.
C**S
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**.
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
ممتاز. اصلح لي المشكله. فورد كروان فكتوريا. كلهم قالوا يحتاج توضيب بس المنتج بطل
S**T
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**.
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.