As has been noted here before, Castrol’s Product Data Sheets contain sparse information concerning the physical and chemical properties of its oils. So I decided to ask them what most other blenders freely disclose. Thought I would get back the standard non-answer but low and behold they sent me the information. It did take several requests and three or four weeks but ….
In case anyone is interested:
In case anyone is interested:
code:
GTX 5W-20 (SM/GF-4)
Flash Point: 400 F
Pour Point: -30 F
Kinematic Viscosity (cSt) @ 40°C: 50.5
ViscosityIndex: 156
HT/HS Viscosity, cP: 2.7
Noack volatility, % 14.5% max
TBN: 8
GTX 10W-30 (SM/GF-4)
Flash Point 400 F
Pour Point: -30 F
Kinematic Viscosity (cSt) @ 40°C: 66.3
Viscosity Index: 136
HT/HS Viscosity, cP: 2.9
Noack volatility, %: 11.2% max
TBN: 8