Page 81 - Electric

TOS T LIFE TUBE S
Shell Turbo S4 X >20,000 hrs

If we look at leading OEM specifications TOST life varies anywhere from 3,000 hrs to 7,000 hrs minimum oil life. Our Shell
Turbo T, and S4 products have over 10,000 hrs TOST life (this test is run at 95C in the presence of oxygen, water and metal
catalysts). In fact we have modified this test to run for extended periods and the Turbo S4 grades have over 20,000 hrs TOST life
with very little deposit formation as shown by the glass tubes at the end of the test.

น้ำ�มันหล่อลื่นสำ�หรับกังหันก๊�ซ (Gas turbine) และกังหันไอน้ำ� (Steam turbine)

January-February 2018
January-February 2018