Skip to Main Content
Close Icon

Main Menu

EP Series

  • Base Oil Technology: Mineral
  • Viscosity Range: ISO 68-680
  • Viscosity Index: 82-123

AMSOIL Industrial EP Series Extreme-Pressure Gear Oil is engineered to protect gear drive systems during extreme loading or shock conditions, including enclosed, circulating and splash-lubricated applications. EP Series COMP is a compounded lubricant with special lubricity additives that provide the necessary film strength to overcome sliding tooth action that can force the lubricant out of the gear mesh.

  • Superior extreme-pressure load-carrying properties to reduce wear.
  • Excellent oxidative stability reduces varnish, sludge and deposits.
  • Low foaming properties to maintain a robust lubricating film.
  • Outstanding water separation ensures proper lubrication at the gear-tooth interface.
  • Inhibits rust and corrosion to maximize equipment life.

 

See how AMSOIL Industrial EP Series compares against the rest of our extreme pressure gear oil family.

Extreme Pressure Gear Oil

The price/performance chart compares the price and performance of AMSOIL Industrial extreme-pressure gear oils, with performance measured on the X axis and price on the Y axis. Products are listed in ascending order of both performance and price, forming a diagonal line at a 45-degree angle from bottom-left to top-right. The listed products, from left to right, are EP Series a mineral oil; EP Series-MPT, a mineral oil; EP Series-S, a synthetic oil; Synthetic Power Transmission EP Gear Oil; and EP Series-PG, a synthetic oil.

Typical Technical Properties*

AMSOIL Industrial EP Series Extreme-Pressure Gear Oil

Test

ISO 68

ISO 100

ISO 150

ISO 220

ISO 320

ISO 460

ISO 680

7 COMP

8 COMP

8A COMP

Stock Code

424001

424005

424010

424015

424020

424025

424030

424035

424045

424040

AGMA Viscosity Grade

2EP

3EP

4EP

5EP

6EP

7EP

8EP

7COMP

8COMP

8ACOMP

Fives Cincinnati

P-63

P-26

P-77

P-74

P-59

P-35

P-78

Viscosity Index

97

98

99

100

100

99

84

98

82

123

Viscosity, cSt @ 40°C

69

102

153

221

322

454

660

422

640

1004

Viscosity, cSt @ 100°C

8.7

12

15

20

25

31

36

31

35

64

Specific Gravity @ 60°F

0.878

0.882

0.886

0.891

0.894

0.899

0.913

0.902

0.918

0.922

API Gravity

29.8

29.0

28.3

27.4

26.7

25.9

23.4

25.4

22.7

22.0

Flash Point, °C (°F) (COC)

193 (380)

207 (405)

227 (440)

227 (440)

249 (480)

266 (510)

277 (530)

266 (510)

299 (570)

279 (535)

Pour Point, °C (°F)

-12 (10)

-9 (16)

-9 (16)

-7 (19)

-7 (19)

-7 (19)

-1 (30)

-7 (19)

-1 (30)

2 (36)

Timken OK Load, lbs.

70

70

70

70

70

70

70

FZG Load Stage

12

12

12

12

12

12

12

Copper Corrosion, 3 hrs. @ 100°C

1b

1b

1b

1b

1b

1b

1b

1b

1b

1b

*Technical properties are general characteristics of the product and not manufacturing specifications. Variations that do not affect product performance should be expected. Product formulations are subject to change without notice. Customers are responsible for determining product suitability for use with their equipment.