K & W Trans-X High Mileage Automatic Transmission Treatment 16 fl oz — Stop‑Leak & Shift Restorer

K & W CRC Trans-X High Mileage Automatic Transmission Treatment is a 16 fl oz stop‑leak and performance restorer designed for automatic transmissions in vehicles with 75,000 miles or more.

If your older car is showing signs of slipping, rough or delayed shifts, or small leaks around transmission seals, Trans‑X offers a concentrated treatment aimed at reducing leaks and restoring smoother gear changes without immediate disassembly. The formula is created specifically for high‑mileage automatic transmissions (not for CVT or manual gearboxes) and is intended to be added to the transmission fluid to help condition seals and improve shifting behavior while you decide on longer‑term repairs.

How does Trans‑X help older automatic transmissions perform better?

The treatment works by conditioning and swelling aged rubber seals and gaskets to reduce seepage and small leaks, while also modifying friction characteristics to improve shift feel. It isn’t a mechanical repair for failed parts, but it can restore a more consistent hydraulic environment that often translates to crisper, smoother shifts.

• Conditions rubber seals to reduce minor leaks and seepage.
• Adjusts friction properties to improve shift quality and reduce slipping.
• Designed for vehicles with 75,000+ miles where seals have begun to harden.
• Added directly to the transmission fluid reservoir; no disassembly required.

Will Trans‑X stop all transmission leaks and avoid repairs?

Trans‑X can stop or reduce many common leaks caused by hardened or shrinking seals, but it won’t permanently fix major mechanical failures such as torn seals, broken oil pans, or internal gear damage. Use it as a preventative or interim measure to reduce fluid loss and improve drivability while planning any necessary mechanical repairs.

• Effective for leaks caused by aged or hardened rubber components.
• Not a substitute for replacing physically damaged or ruptured parts.
• May delay immediate repair urgency by slowing or stopping minor leaks.
• Monitor fluid level and condition after use; seek mechanic if problems persist.

How and when should I use this 16 fl oz bottle of Trans‑X?

Use the product according to the vehicle manufacturer’s instructions and the label on the bottle. Typically, add the recommended dose to the transmission fluid with the engine warm and idling so the fluid circulates evenly; then monitor performance and fluid level over the next driving cycles.

• Warm the engine and transmission to normal operating temperature before adding.
• Follow the dosage directions on the product label for your transmission capacity.
• Check transmission fluid level after treatment and recheck after several drives.
• Do not use in CVT or manual transmissions—formulated only for automatic transmissions.

What safety and storage precautions should I follow?

Trans‑X contains flammable ingredients and should be stored away from heat, sparks, and open flames. Handle with care—use gloves and eye protection if there’s a risk of splashing, and keep containers tightly closed when not in use.

• Store in a well‑ventilated, cool area away from ignition sources.
• Wear appropriate PPE (gloves and eye protection) when pouring or handling.
• Dispose of any waste fluid and empty containers per local hazardous waste rules.
• Read and follow all directions and warnings printed on the product label.

Who is this for? K & W CRC Trans‑X High Mileage Automatic Transmission Treatment is aimed at owners of high‑mileage cars and light trucks (75,000 miles or more) with automatic transmissions that show early signs of seal drying, minor leaks, slipping, or rough shifting. It’s useful as a preventive maintenance step or a temporary fix to improve drivability and reduce fluid loss while you evaluate longer‑term repair options. Avoid using it in CVT or manual transmissions and follow all safety and handling guidance on the label.