HPLS Transmission Treatment & Stop Leak

Product code: WYN59408

19 in stock

GBP new

£11.49

£9.58 ex. VAT

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Wynns HPLS (High Performance Lubricating System) Transmission Treatment & Stop Leak is a specialized additive designed to restore performance and stop leaks in automatic transmissions. This advanced formula contains a unique blend of seal conditioners, friction modifiers, and high-performance lubricants that rejuvenate hardened seals, reduce wear, improve shift quality, and stop or reduce fluid leaks. Regular use helps extend transmission life, restore smooth operation, and prevent costly transmission repairs in both aging and high-mileage vehicles.

Key Features

• Seal Conditioning: Revitalizes and expands dried or shrunk rubber seals and gaskets
• Leak Reduction: Effectively stops or reduces transmission fluid leaks
• Shift Quality Improvement: Smooths harsh or erratic shifting
• Friction Modification: Optimizes clutch engagement for improved performance
• Wear Protection: Enhances protection of critical transmission components
• Noise Reduction: Quiets noisy transmissions and reduces whining
• Heat Resistance: Improves fluid stability under high-temperature conditions
• Compatible with All ATF: Works with conventional and synthetic transmission fluids
• Preventative Maintenance: Helps maintain seal elasticity in aging transmissions
• Long-Lasting Effect: Continues working throughout the fluid service interval

How to Use

Add entire contents to the transmission fluid through the dipstick tube or fill port when the fluid is at normal operating temperature. One bottle treats most passenger vehicle transmissions (up to 8-10 quarts of fluid capacity). Drive normally, cycling through all gears, allowing the product to circulate through the transmission system. Results may begin to show within 100-200 miles of driving, with maximum effectiveness typically achieved within 300-500 miles. For preventative maintenance in high-mileage transmissions, use with every other fluid change. For active leaks, a second treatment may be used after 1,000 miles if needed.

HPLS Transmission Treatment & Stop Leak is particularly valuable for addressing common transmission issues including fluid leaks, harsh shifting, slipping, noise, and overheating without requiring expensive repairs. This product is ideal for older, high-mileage vehicles where seal deterioration and wear are common. Not recommended for CVT (Continuously Variable Transmissions) or DCT (Dual Clutch Transmissions) unless specifically stated as compatible on the packaging. For comprehensive transmission care, consider performing a transmission fluid and filter change before adding this product for maximum benefit.

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