Best Hydraulic Additives in 2026

High VI paraffinic base stock

Contains LUBIUM (additive)

Anti-foam protection and Anti-squeal additive

Superior quality, universal hydraulic fluid designed to mix with all hydraulic fluids in power trim and steering systems

Protects seals and hoses, and prevent foaming, oxidation and corrosion.

Prevents foaming

Maintains smooth power steering operation

Anti-wear agents protect pump components

Seal conditioners protect and rejuvenate seals

Package Dimensions: 22.86 H x 6.858 L x 10.490 W (centimetres)

Flash point: 87.8

Country of Origin : United States

Hydraulic Fluid Hydropneumatic Suspension and Convertible Top

Set of 2 bottles (2 Liters total) MBZ Approval:343.0

Mercedes part# 000 989 91 03 10, check fit below.

LIQUID WRENCH is a local family owned company based out of Charlotte, NC. For more than 75 years, LIQUID WRENCH products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation.LIQUID WRENCH

Formulated with extreme pressure additives

For use in all hydraulic jacks, snow plows and refillable shock absorbers

Advanced formulation technology provides outstanding protection to the entire power steering system while delivering smooth performance under the most severe operating conditions

Unique friction technology provides efficient and noise-free operation

Superior low temperature performance for easy flow and protection against cavitation and elimination of "squawking" and "squealing"

Superior quality, universal hydraulic fluid designed to mix with all hydraulic fluids in power trim and steering systems

Protects seals and hoses, and prevent foaming, oxidation and corrosion.

Prevents foaming

FULL SYNTHETIC - No compromise formulation, full synthetic with extremely high-performance metrics. EXTREMELY ECONOMICAL - Lowest cost per hour of operation. Period. MULTI-VISC FORMULATION for wide viscosity range applications.

TRUE ALL-SEASON - Extreme temperature range for arctic cold (-54 F) to hot desert summers. Trouble-free, long duration, flawless hydraulic response, and power transfer.

7,000 -10,000 Hour RATING - Minimum 7,000 hour rating and up to 10,000 operational hours in severe service. ZERO FOAMING - Virtually zero foaming in high-stress environments and extremely rapid air release & air separation. Prevents hydraulic cavitation.

Advanced power steering fluid

Maximizes the life and performance of all power steering units

Proprietary Synerlec additive technology

Outstanding performance versus OEM fluids and specifications; wide ranging, total compatibility with all John Deere, Kubota, Case, Class, Massey Ferguson, and most other farming / tractors / harvester equipment

Replaces virtually all OEM fluids; Dyed red to help quickly and easily identify leaks and to prevent confusion with motor oil

Substantially less slipping; Over 6,000 hours oil life in hydraulic systems

Manufacturer #:6161

Weight:1.970

Lucas, 12Oz, Power Steering Stop Leak, Removes Hard Spots And Stops Most Leaks Or Your Money Back! This Formula Is A Blend Of Special Oils And Petroleum Extracted Additives, Contains No Solvents And Is An Excellent Preventative Maintenance Product Of New Units

The unit is Complete Line Of Heavy-Duty Shop Product.

Through Creativity, Productivity And Innovation - This Brand Continues To Develop The Finest Automotive Accessories

Specs: Description: Hydraulic Oil and Stop Leak, Adds life to pumps, rams and seals, Adds lubricity and thermal stability to any hydraulic oil, Automatic transmissions: use approx. 10% to stop slip, leaks, rough shifting and over-heating; up to 30% in worn units, Construction equipment: use approx. 5%-10% for preventative maintenance; up to 20% to correct heat, leaks and fading in older equipment, Hydrostatic drives: use approx. 10% for more hydraulic pressure and less gear wear;

Replaces OEM Numbers: Lucas Oil: 10018

Stens 1 year warranty ensures reliability and performance for every part. We're confident that our products will work flawlessly, but in a rare case that it does not, we'll replace it anytime within one year of your order.

For use in all oil-lubricated reciprocating air compressors

Provides exceptional wear, oxidation, and corrosion protection

Prevents the formation of sludge and carbon deposits

Formulated specifically for Hot Rods, Muscle Cars, and Classics.

High Quality Paraffinic Conventional/Mineral base oils offer excellent lubrication properties. (Driven HR Series Oils are also available in a Full Synthetic formula)

High/ Correct level of ZDDP for Flat Tappet & Hydraulic Flat Tappet camshafts. Do not use any additives.

6,000 HOUR SEVERE SERVICE - Extremely long life fluid, with very long oxidation life. 3 times the life of most other fluids.

ANTI-WEAR BOOSTER PACK - Contains a built-in severe service anti-wear booster pack. Three times the zinc of most other hydraulic oils.

HIGH VISCOSITY INDEX - Ultimate durability in all types of service. It does not overheat, prevents hydraulic cavitation, maintains fluid seals on pistons, and does not shear.

Full synthetic advanced protection; increased load-bearing capacity, beyond 800-1000% higher than most conventional compressor oils; thick, high durability film strength to prevent metal to metal contact even in high operating temperatures conditions

True all season; offers both high temp continuous operation capabilities and arctic grade - 50 F; multi viscosity keeps fluid requirements at a minimum eliminating the need for lower or higher viscosity oils due to temperature range

Works exceptionally well on rotary, vane, screw, and reciprocal air compressors in severe service with high compression temperatures and long operating hours

Medium weight hydraulic oil blended of a high quality parafinic base oil with additives

Anti-Foam and Anti-Rust

Not VOC Compliant for California & OTC

Protects against wear and saves fluid with a unique 2-in-1 formula

Revitalizes dried, hardened and shrunken seals with a special conditioner

Helps protect against wear and pump breakdown

Exceptional protection against wear from microscopic contaminants and higher operating temperatures and pressures ensures long equipment life

Critically balanced frictional characteristics ensure precise clutch and wet brake operating with unsurpassed chatter suppression

Extra resistance to thermal degradation provides superior protection against oxidation and deposit formation

Anti-foam additives assure uniform flow with reduced air contamination in hydraulic systems

Designed for use at high operating pressures in applications subject to varied temperature ranges

Provides proper lubrication and corrosion protection for internal hydraulic components

Anti-foam additives assure uniform flow with reduced air contamination in hydraulic systems

Designed for heavy duty use at high operating pressures in applications subject to varied temperature rang

Provides proper lubrication and corrosion protection for internal hydraulic components

FLUID 75 is the ideal power-transmission medium for all bicycles with hydraulic braking and clutch-actuation systems

The select mineral base fluids combined with the additives specially tailored to these applications guarantee that brakes and/or clutches react quickly and reliably over the entire temperature range

The good level of compatibility with the sealing materials used increases the service life.

Power Steering Wheel Additive Fluid for Your Diesel Truck

Decreases Steering Force

Decreases Noise and Vibration of the Hydraulic System Pump

Superb high temperature thermal/oxidation resistance

High Viscosity Index and absence of wax

Low traction coefficient

2 LUBRICANT-AXLE BOTTLES

Viscosity Index Improvers: Enhanced VII maintain lubricant flow and improve shear stability of the oil, especially at extreme temperatures.

Water Demulsifiers: Improves fluid ability to separate from water, virtually eliminating hydraulic issues related to water.

Pour Point Depressants: Reduce the pour point and improve flow at low temperatures.

Oil based

Formulated with additives and carefully selected mineral based oils for specific European vehicles

Manufactured with high quality materials

Compatible with All Conventional Power Steering Fluids

Meets Specs of GM, Ford, Chrysler and Most Domestic and Foreign Auto Manufacturers

Provides Protection Against Oxidation to Prevent Sludge with a Corrosion Inhibitor to Protect Metal Components