Skip to content
8–23 August: reduced summer staffing. Orders may take up to 5 extra working days to dispatch and emails up to 2 working days to answer. Thanks for your patience.
8–23 Aug: orders may ship up to 5 days later.

GA6809 - Transmission Additive – Shudder Fixx

Original price - Original price €21,10
Original price
€21,10
€21,10 - €21,10
Current price €21,10
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand Lube Guard
Transmission Additive - Shudder Fixx is a concentrated friction modifier for automatic transmission fluid, formulated to address torque converter clutch shudder.

Blended from synthetic esters, it restores the frictional characteristics of the ATF so that a worn or glazed converter clutch engages smoothly, reducing the vibration felt during lock-up. It is added directly to the existing transmission fluid and is supplied in a 2 oz application tube.

Suitable for conventional and synthetic automatic transmission fluids. It is not for use in CVT or dual-clutch (DCT) transmissions, or with Ford Type F fluid.
Alternative Codes
GA6809DA6809

In stock 2 units
2 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does Shudder Fixx transmission additive do?
Shudder Fixx is a friction modifier for automatic transmission fluid that targets torque converter clutch shudder. Blended from synthetic esters, it restores the fluid's frictional properties so a worn or glazed converter clutch locks up smoothly, reducing the vibration felt during lock-up. It's supplied in a 2 oz application tube.
How do you use Shudder Fixx?
Shudder Fixx is added directly to the existing automatic transmission fluid, with no draining required. The 2 oz tube is added in one application. It works with both conventional and synthetic automatic transmission fluids, so it suits most torque converter automatics.
Can Shudder Fixx be used in any transmission?
No. Shudder Fixx suits conventional and synthetic automatic transmission fluids, but it's not for CVT or dual-clutch (DCT) transmissions, or with Ford Type F fluid. Using it in the wrong transmission type can affect how the clutches engage, so check your transmission type first.