BULWARK TRANSMISSION GL-4 is a series of high-quality mono-grade transmission oils designed for use in differentials, manual transmissions and other automotive gear boxes. They are blended with high quality mineral paraffinic base oils providing outstanding gear protection and lubrication of bearings together with excellent extreme pressure properties.

BULWARK TRANSMISSION GL-4 140 EP oil is a high quality mineral paraffinic gear lubricant designed to use in drive axles of passenger cars, light, medium and heavy commercial vehicles requiring the use of API GL-4 performance.

Performance Level
  • API GL-4

Key benefits
  • Trouble-free performance 

  • Increased load-carrying capability with outstanding protection.

  • Excellent thermal and oxidation stability helps extend gear and bearing life.

  • Excellent rust and corrosion protection help reduce wear and prolongs component life.

Transmission GL-4 140 EP

Mono-Grade Transmission Oil