Rislone High Mileage Transmission Stop Slip with Leak Repair - Pack

In this review the Rislone High Mileage Transmission Stop Slip with Leak Repair is evaluated for drivers who want to stop slipping and quiet noisy automatics without an immediate teardown. The single biggest reason to buy is its focused formula that combines friction modifiers and viscosity improvers to restore bands and clutches, which translates to fewer slips, reduced rough shifting and lower operating temperature. The product is described as a preventative and repair additive for many automatic transmissions, and this reviewer found its claims line up with sensible workshop and DIY maintenance use.

Key Features

• Stops slip: The blend of friction modifiers and performance additives restores bands and clutches to reduce slipping and hesitation during acceleration.
• Quiets noise: Renews and stabilizes automatic transmission fluid to reduce shudder, chatter and whining that come from worn fluid properties.
• Fixes hard shifting: Premium ingredients improve clutch engagement and smooth out harsh or delayed shifts, helping avoid immediate costly repairs.
• Leak repair action: Formulated to stop minor fluid loss and seal small leaks while protecting internal components from further wear.
• Wide vehicle fit: Safe for front, rear, four wheel and all wheel drive automatic transmissions in cars, trucks, vans, SUVs and RVs (not for CVT).

Who It's For

The Rislone additive is best for owners of light duty and heavy duty vehicles with automatic transmissions who are experiencing slipping, noisy behavior, shudder or hard shifting and who want a simpler, lower-cost first step before a shop rebuild. It is also useful for preventative maintenance to lower operating temperature and slow wear in higher-mileage units.

Drivers with continuously variable transmissions (CVT) should look elsewhere, and anyone with catastrophic mechanical damage or severe fluid starvation should not expect this additive to replace mechanical repair; on manual transmissions it will only help with leaks, noise and hard or loose shifting, not slipping.

Pros & Cons

Pros

• Effectively reduces slipping and hesitation by restoring clutch and band engagement in many automatic transmissions.
• Helps quiet shudder, chatter and whining by stabilizing ATF viscosity and friction characteristics.
• Works as a preventive measure to lower operating temperature and reduce wear in high mileage units.

Cons

• Not compatible with CVT transmissions, so fit must be confirmed before use.
• Will not cure catastrophic mechanical failures; it is intended for repair of fluid-related slip and minor leaks.

Specifications

Product name	Rislone High Mileage Transmission Stop Slip with Leak Repair
Volume per can	16.9 oz
Pack size	Pack of 5
Vehicle fit	Cars, trucks, vans, SUVs, RVs with automatic transmissions (not CVT)
Primary functions	Stop slip, repair minor leaks, reduce noise, restore shifting
Suitable transmission types	3, 4, 5, 6 speed, electronic, overdrive, automatic; limited manual benefits

Our Verdict

For owners of high mileage automatics noticing slipping, rough shifts or noise, this Rislone formula is a cost-effective first step that often restores smoother operation and reduces the need for immediate repairs. It delivers real benefits for routine maintenance and targeted leak or slip complaints, but it is not a substitute for major mechanical work or CVT-specific products.

Frequently Asked Questions

Can I use this in a CVT transmission?
No. This product is not designed for CVT transmissions and should not be used in them.

Will it fix a transmission that is slipping badly?
It can stop slipping caused by degraded fluid and worn friction characteristics, but it will not repair catastrophic internal damage.

Is it safe for all drive layouts?
Yes, it is suitable for front wheel drive, rear wheel drive, all wheel drive and four wheel drive automatic transmissions when not a CVT.