Castrol Alpha VT 32
01736 757002VISCOSITY - ISO 32
Turbo transmission oil
Castrol Alpha™ VT 32 has been developed specifically for Voith Turbo transmissions to provide long service life and
realibility, and to exceed the Voith specification 3.90-8e_2011-07
Alpha VT 32 is formulated for hydrokinetic transmissions used mainly in railway locomotives. Other applications include
trucks and heavy off-highway equipment incorporating this type of transmission unit. The oil is also suitable for
conventional industrial gearboxes where a low viscosity oil is suitable. This oil provides higher load carrying
performance, together with excellent oxidation resistance, anti-corrosion and minimal foaming.
Alpha VT 32 is fully compatible with nitrile, silicone and fluropolymer seal materials.
Alpha VT 32 meets the requirements of:
Voith Turbo Specification 3.90-8e_2011-07
- Long service life
- Excellent load carrying and micropitting resistance
- Good seal compatibility
- Low foam and rapid air release
- Excellent demulsification
| Name | Method | Units | Alpha VT 32 |
| Density @ 15°C / 59°F
| ISO 12185, ASTM D4052 | kg/m³ | 870 |
| Kinematic Viscosity @ 40°C / 104°F
| ISO 3104, ASTM D445 | mm²/s | 32 |
| Kinematic Viscosity @ 100°C / 212°F
| ISO 3104, ASTM D445 | mm²/s | 5.4 |
| Viscosity Index
| ISO 2909, ASTM D2270 | None | 105 |
| Pour Point
| ISO 3016, ASTM D97 | °C/°F | -42 / -44 |
| Flash Point – open cup method
| ISO 2592, ASTM D92 | °C/°F | 234 / 453 |
| Water Separation @ 54°C / 129°F (40/37/3)
| ISO 6614, ASTM D1401 | minutes | 5 |
| Air Release @ 50°C / 122°F
| ISO 9120, ASTM D3427 | minutes | 4 |
| Foam Sequence I – tendency / stability
| ISO 6247, ASTM D892 | ml / ml | 0 / 0 |
| Foam Sequence II – tendency / stability
| ISO 6247, ASTM D892 | ml / ml | 10 / 0 |
| Foam Sequence III – tendency / stability
| ISO 6247, ASTM D892 | ml / ml | 0 / 0 |
| Rust test – synthetic seawater (24 hrs)
| ISO 7120, ASTM D665B | – | Pass |
| FZG Gear Scuffing test – A/8.3/90 | ISO 14635-1 | Failure Load Stage | >12 |
| FZG Gear Scuffing test – A/16.6/90 | ISO 14635-1 | Failure Load Stage | 12 |
| FZG Micropitting test @ 90°C/194°F
| FVA 54/1 | Failure Load Stage / Micropitting Rating | >10 (high) |
| FE-8 Bearing Wear test (F.562831.01- 7.5/80-80) | DIN 51819-3 | Roller wear (Mw50), mg | < 10 |
