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⚙️ Keep your transmission running like new — because smooth shifts never go out of style!
Bar's Leaks High Mileage Transmission Repair is a 16.9 fl oz additive that stops leaks, reduces slipping, and smooths rough shifting by controlling heat and friction. Designed for high mileage vehicles, it restores transmission performance and helps avoid costly repairs. Compatible with all transmission fluids except CVT, it’s the go-to solution for maintaining a reliable, smooth-driving experience.
| ASIN | B00092PXIS |
| Best Sellers Rank | #4,079 in Automotive ( See Top 100 in Automotive ) #47 in Oil & Fluid Additives |
| Brand Name | Bar's Leaks |
| Container Type | Bottle |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,237) |
| Global Trade Identification Number | 00046087014004 |
| Included Components | Transmission Repair-It |
| Item Form | Oil |
| Item Type Name | Bar's Leaks 1400 Transmission Repair - 16.9 Fl Oz |
| Item Weight | 490 g |
| Liquid Volume | 16.9 Fluid Ounces |
| Manufacturer | Bar's Leaks |
| Material | Synthetic |
| Model Number | 1400 |
| Number of Items | 1 |
| Part Number | 1400 |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Transmission Maintenance, Preventing Leaks, Improving Transmission Performance |
| UPC | 046087014004 |
| Unit Count | 499.79 Milliliters |
| Viscosity | 5w-30 |
Z**A
Super
Very good my engine feels like new
P**S
Worked Fantastic on HONDA Pilot 2016
I had problem of slipping and downshift thuds in transmission, ALL this stopped once I replaced the Fluid and added this fluid. it took only few miles, but should see underneath if it fixed the leaks, after I run for 200+ in single run Worth the Money and trouble
Y**N
No difference
I didn't notice any difference despite changing the transmission fluid and the filter. My car is w221 mercedes s class.
A**S
Good
It works
S**G
The Dynaflow transmission in my 1953 Buick has been sub par for a while, including a leak. The first time I used Barr's transmission treatment the improvement was staggering. No slippage and close to perfect shifting. A little early to tell if leakage has been reduced but I will report later. I have another bottle ready to re-treat as needed and will reorder to have some on hand. At this stage I am no longer considering having the transmission rebuilt, saving a few thousand dollars!
S**N
This product stopped the leak in my Chevy vans transmission & it now no longer skips & hesitate
K**R
Really helped trans in pt cruisor shifting better was like in a bind now is free good stuff
S**M
Wow! I was doubtful when I ordered that this could fix my transmission. I have a clear leak and it causes a heavy gear shift. Within a day of adding to my running vehicle with a funnel through the tranny dipstick slot, the heavy shifts were gone. I have no evidence the leak is still there nor corrected yet, but felt a difference despite me expecting nothing.
M**O
LO MAXIMO MUY BUEN PRODUCTO
Trustpilot
3 days ago
1 week ago