Four Seasons AW

High-Quality Antiwear Hydraulic Oil


Kendall® Four Seasons Hydraulic Fluid AW is a high-quality antiwear hydraulic fluid developed for use in a wide variety of industrial and mobile hydraulic system applications. It meets the performance requirements of all major hydraulic pump manufacturers, and is recommended for use in all types of high-pressure, high-speed hydraulic pumps.

Features & Benefits

  • Excellent wear protection for hydraulic pumps and motors
  • Excellent oxidation resistance and thermal stability
  • Protects against rust and corrosion
  • Excellent water-separating properties
  • Excellent filterability, even in the presence of a small amount of water
  • Good foam resistance

Applications

  • Hydraulic systems on industrial, mobile and marine equipment
  • Automated machine tools
  • Hydraulic elevators, hoists, presses and floor jacks
  • Marine cargo winches and steering systems
  • Mobile construction equipment
  • Service station lifts
  • Air tools and other pneumatic equipment lubricated through air line lubricators
  • Chain drives
  • Electric motor bearings
  • Lightly to moderately loaded enclosed industrial gear drives that do not require a compounded or extreme-pressure (EP) gear oil

Technical Details

ISO 32
ISO 46
ISO 68
ISO 100

Licenses & Approvals

Four Seasons Hydraulic Fluid AW meets the requirements of the following industry and OEM specifications:

  • Bosch Rexroth RE 90220, Type HLP
  • DIN 51524 Part 2, Antiwear Hydraulic Oils, Type HLP
  • Eaton-Vickers I-286-S, M-2950-S
  • German Steel Industry SEB 181222
  • ISO 11158:1997, Family H (Hydraulic Systems), Type HM
  • Parker Hannifin (Denison) HF-0, HF-1, HF-2
  • U.S. Steel 127

Additional Details

ISO Grade 32 46 68 100
Density, lbs/gal @ 60°F 7.19 7.24 7.28 7.31
Color, ASTM D1500 0.5 0.5 1 1
Flash Point (COC), °C (°F) 216 (421) 227 (441) 238 (460) 252 (486)
Pour Point, °C (°F) -37 (-35) -37 (-35) -33 (-27) -32 (-26)
Viscosity
cSt @ 40°C 32 46 68 100
cSt @ 100°C 5.4 6.8 8.7 11
SUS @ 100°F 165 237 353 523
SUS @ 210°F 44.4 49 55.5 63.9
Viscosity Index 102 102 99 94
Acid Number, ASTM D974, mg KOH/g 0.38 0.38 0.38 0.38
Copper Corrosion, ASTM D130 1a 1a 1a 1a
Demulsibility, ASTM D1401, minutes to pass 10 10 10 10
Foam Test, ASTM D892, Seq. I, mL 0/0 0/0 0/0 0/0
FZG Scuffng Test, ASTM D5182, Failure Load Stage 12 12 12 12
Oxidation Stability
TOST, ASTM D943-04a, hours >5,000 >5,000 >5,000 >5,000
RPVOT, ASTM D2272, minutes >270 >270 >270 >270
Rust Test, ASTM D665 A&B Pass Pass Pass Pass
Zinc, wt % 0.043 0.043 0.043 0.043