Synthetic PAO-Based Extreme-Pressure Gear Lubricant for Wind Turbine Generators

Phillips 66®Syncon WTL is a state-of-the-art, synthetic, extreme-pressure (EP) gear lubricant specifically developed for the lubrication of heavily loaded gears and rolling-element bearings in gearboxes on older and new-generation wind turbine generators.

Features & Benefits

  • Outstanding performance in wind turbine generator gearboxes
  • Outstanding oxidation resistance and thermal stability at high temperatures
  • Very high load-carrying capacity for protection against scuffing and wear
  • Excellent protection against micropitting
  • Protects against rust and corrosion
  • Non-chlorinated additive system
  • Outstanding low-temperature properties
  • High viscosity index and low pour point for year-round use


  • Gear drives of wind turbine generators
  • Enclosed industrial gear drives operating under severe-service conditions, such as heavy loads or high operating temperatures, or in extreme temperature environments
  • Applications where the equipment manufacturer specifies a synthetic AGMA 6 EP gear oil (obsolete) or ISO 320 AS gear oil (new)

Technical Details

Licenses & Approvals

Syncon WTL meets or exceeds the requirements of the following industry specifications:

  • ANSI/AGMA Standard 9005-F16, Anti-Scuff Lubricants (AS)
  • ANSI/AGMA/AWEA 6006-A03
  • DIN 51517 Part 3, Lubricating Oils, Type CLP
  • SO 12925-1, Type CKD

Syncon WTL is listed on the latest Flender T7300 approved lubricants list (02/2017) and is approved against Revision 15 of the Flender specification.

Additional Details
ISO Grade320
AGMA Grade (obsolete), AGMA 9005-E026 EP
AGMA Classification, AGMA 9005-F16AS
Specific Gravity @ 60°F0.862
Density, lbs/gal @ 60°F7.18
Color, ASTM D15001.5
Flash Point (COC), °C (°F), ASTM D92246 (475)
Pour Point, °C (°F), ASTM D97-45 (-49)
cSt @ 40°C320
cSt @ 100°C34.9
Viscosity Index, ASTM D2270152
Acid Number, ASTM D974, mg KOH/g0.83
Copper Corrosion, ASTM D130, 48 hrs @ 80°C1a
Four-Ball EP, ASTM D2783, Weld Load, kgf250
Four-Ball Wear Test, ASTM D4172, Scar Diameter, mm0.35
FZG Micropitting Test, FVA 54/11 @ 90°C
Fail Stage>10
FZG Scuffing Test, ASTM D5182, Failure Load Stage>14
Rust Test, ASTM D666 A&BPass
Timken OK Load, ASTM D2782, lb95