Lubegard Dr. Tranny Instant Shudder Fixx transmission additive 2 oz 2-pack, concentrated for ATF & CVT

Lubegard Dr. Tranny Instant Shudder Fixx is a concentrated 2-ounce formula designed to quickly reduce transmission and torque converter shudder in automatic and CVT systems when mixed with the fluid.

Built for technicians and DIYers who need a fast, targeted treatment, this two-pack provides enough product for one or two service events depending on application rates. The proprietary chemistry is formulated to work with most automatic transmission fluids (ATF) and continuously variable transmission (CVT) oils without adding viscosity, aiming to restore smooth engagement and reduce juddering, slipping sensations, or hesitation caused by friction material or fluid condition.

How does this product address transmission or torque-converter shudder?

Dr. Tranny Instant Shudder Fixx modifies friction characteristics to promote smoother clutch pack engagement and dampen vibration between friction surfaces. It is a concentrated additive meant to be blended into the transmission fluid at recommended ratios for immediate effect.

• Concentrated 2 oz dosage for small-volume, targeted treatment
• Formulated for automatic and CVT systems; compatible with many ATFs
• Works by altering friction coefficients, not by thickening the oil
• Quick mixing and immediate results in many cases after a short drive

What vehicles and systems are suitable for this additive?

Suitable for a wide range of automatic transmissions and many CVTs, but always check your vehicle manufacturer’s fluid requirements before adding any additive. This product is typically used when customers notice shudder, judder, or engagement roughness that static maintenance did not resolve.

• Passenger cars, light trucks, and SUVs with conventional ATF
• Many CVT-equipped vehicles when manufacturer permits additives
• Not intended as a substitute for mechanical diagnosis or major repairs
• Ideal for vehicles exhibiting mild-to-moderate shudder symptoms

How should I use the 2-ounce bottle safely and effectively?

Use one 2 oz bottle per application unless vehicle manufacturer specifies otherwise. Add the product to the transmission fluid while the engine is idling and transmission at operating temperature, then follow with a short drive cycle to allow circulation and engagement of treated fluid.

• Confirm compatibility with your ATF/CVT type and vehicle manual
• Warm the transmission to normal operating temperature before adding
• Add through the dipstick tube or fill port per vehicle procedures
• Drive 10–20 minutes after adding to circulate and observe results

What immediate effects and limitations should I expect?

Many users report a noticeable reduction in shudder and smoother engagement shortly after use, but results depend on transmission wear, fluid condition, and severity of the issue. This is a chemical treatment; it does not replace necessary mechanical repairs or fluid replacement when contaminated or degraded.

• May restore smoother shifts and reduce judder in many cases
• Not a permanent fix for severe mechanical wear or internal damage
• Performance varies with fluid age, contamination, and clutch material
• Follow up with diagnostics if symptoms persist after treatment

Who is this for: Lubegard Dr. Tranny Instant Shudder Fixx 2 oz (2 pack) is aimed at mechanics, fleet technicians, and informed vehicle owners who need a concentrated corrective additive for mild-to-moderate transmission or torque-converter shudder. It’s useful for single-car garages and quick-service shops that want a fast, simple treatment option to evaluate whether friction modification can restore smooth engagement before pursuing more invasive service. Always verify compatibility with the vehicle manufacturer and combine with proper fluid service and mechanical inspection when needed.