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Motor Medic by Gunk M3616 Trans Medic Automatic Transmission Treatment & Shift Improver - 12 oz.

by Gunk
4.7 out of 5 stars 13 customer reviews

List Price: $17.19
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One Each, 12 oz.
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  • Helps eliminate slippage
  • Restores smooth shifting
  • Reduces wear
  • Replenishes depleted ATF additives
  • Quiets excessive gear whine
See more product details
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Frequently Bought Together

  • Motor Medic by Gunk M3616 Trans Medic Automatic Transmission Treatment & Shift Improver - 12 oz.
  • +
  • Motor Medic by Gunk M1410TF Trans Medic Synthetic Transmission Flush - 10 oz.
  • +
  • Motor Medic by Gunk M1410TS Trans Medic Automatic Transmission Treatment (Fully Synthetic) - 10 oz.
Total price: $20.84
Buy the selected items together


Product Information

Size:One Each, 12 oz.

Technical Details

Brand Gunk
Item Weight 12.8 ounces
Product Dimensions 3 x 3 x 6 inches
Item model number M3616
Exterior Smooth
Manufacturer Part Number M3616

Additional Information

ASIN B000ABEA8M
Customer Reviews
4.7 out of 5 stars 13 customer reviews

4.7 out of 5 stars
Best Sellers Rank #100,326 in Automotive (See top 100)
#125 in Automotive > Oils & Fluids > Transmission Fluids
#188 in Automotive > Replacement Parts > Engine Cooling & Climate Control > Coolers & Accessories
#939 in Automotive > Replacement Parts > Transmission & Drive Train > Transmissions & Parts
Shipping Weight 12.8 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available July 7, 2004

Warranty & Support

Warranty, Parts:Parts

Product Description

Size: One Each, 12 oz.

Gunk TransMedic Automatic Transmission Treatment and Shift Improver helps in eliminating slippage. It restores smooth shifting and reduces wear.

Customer Reviews

Top Customer Reviews

Size: One Each, 12 oz.
I have used this with good results in automatic transmissions that have trouble when cold. If that trouble goes away or improves a lot when the transmission warms up, this will probably help or may even cure the trouble all together. Automatic transmissions have seals on their pistons that get hard from heat over the years. Hard seals allow fluid to leak internally causing the friction plates to slip. This fluid attempts to soften those seals. If the seals are not to bad and the friction plates are still good, you could be in luck. More is not necessarily better and can hurt, so just 1 bottle and give it time to work. Gunk also makes a fully synthetic version of this same product ( M1410TS ).
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Size: One Each, 12 oz. Verified Purchase
This stuff is great. I could feel the difference with a few hundred miles and the car shifts so much better. I will definitely recommend it.
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Size: One Each, 12 oz. Verified Purchase
I have a 1994 Z 28 Camaro LT 1 that I've rebuilt everything on except the Transmission. The original standard Automatic was just slipping in 2nd to 3rd but I knew it was manageable. I bough some of the "other" kind a couple months ago, to no success. This month I use the Gunk Transmission medic, and after a week of very little drive time I now notice a significant improvement in the firmness of the shift points from 1st to 2nd, and 2nd to 3rd grabs,without the slipping. This will extend the life of my Transmission before I must get a rebuild, and worth the money.
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Size: One Each, 12 oz. Verified Purchase
Helps to stop some problems,but not repair a bad trans thats past that. Helps old one shift better and more,but not if it is slipping and not shifting at all. NOT A CURE ALL. But can help.
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Size: One Each, 12 oz.
My transmission would sometimes slip before taking off from a stop. Seems to be a problem for this particular GM car. I tried other additives, like Lukas Transmission Treatment, but none seemed to work. I changed the fluid in my car with Dex6, but the problem persisted. I've always liked the GUNK brand for other purposes, like parts cleaner, but didn't think it would help me here. Also, the price of Gunk's Transmission treatment was a lot cheaper than other brands.
I bought a bottle (only 12 oz) and put into my car's tranny. Didn't think it would help much but the price was right. I took off and the transmission worked perfectly!! Drove it around for the next couple of weeks and the problem only popped up a couple of times, but now the hesitation was much less pronounced. So, I picked up another bottle and poured it in. Problem seems gone altogether! I'm really amazed that it worked so fast and was so much less in price then the others. Try it for yourself.
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Size: One Each, 12 oz. Verified Purchase
When I have shifting problems with the transmission on my camper motorhome a former fleet mechanic who happened to be camping next to me highly recommended this particular product. He was very specific that this was the one thing that he had used for years on his vehicles. In local parts stores its difficult to find but I was able to access it online. I do have to say that since using this transmission When I had shifting problems with the transmission on my camper motorhome a former fleet mechanic who happened to be camping next to me highly recommended this particular product. He was very specific that this was the one thing that he had used for years on his vehicles. In local part stores it's difficult to find but I was able to access it online. I do have to say that since using this transmission treatment is has made a significant difference in the shifting abilities of my automatic transmission.
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Size: One Each, 12 oz.
I had a 1992 Toyota Camry V6 that had a very rough 1-2 shift and chunks in the transmission pan when serviced. The mechanic suggested I rebuild the transmission for $1400 or risk being stuck somewhere. Being poor, I declined. After clearing all the chunks out, replacing the filter and replacing the fluid, the shifts better but still a little slipping. Adding a bottle of this stuff smoothed out the shift even more, almost back to original smoothness.

If your automatic transmission is reluctant to shift or rough, I recommend trying a quick drain/fill of ATF and a bottle of this stuff. It shouldn't hurt anything and is very cheap.

My old 1992 Camry finally died with burnt exhaust valves 120,000 miles later at 255,250 miles. The transmission still shifted fine until the end.
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