Skydrol LD-4

Trusted - World’s best selling Type IV aviation hydraulic fluid.

Erosion-resistant - A breakthrough product introduced in 1978, solving previous problems of valve erosion and thermal stability.

Excellent reliability and performance - Its overall performance under real world conditions has given LD-4 the reputation as the premier aviation hydraulic fluid, with no change in formulation for over 35 years since its inception.

Manufacturer approvals:

  • Airbus (excluding A350)
  • Antonov (An-148, An-158)
  • ATR
  • Beriev (Be-200)
  • Boeing (excluding B787)
  • Bombardier
  • British Aerospace
  • Cessna
  • COMAC
  • Embraer
  • Fokker
  • Gulfstream
  • Ilyushin (Il-86, Il-96)
  • Lockheed
  • Mitsubishi
  • Sukhoi (Superjet 100)
  • Tupolev (Tu-204, Tu-214).