Overview
SP-4 is a automatic transmission fluid of the SP-4 type. The product name identifies the transmission-fluid type it is formulated for; it is not a statement of approval by any vehicle or transmission manufacturer.
Published typical values are 25 cSt at 40 °C and 5.6 cSt at 100 °C, a viscosity index of 164 and a pour point of -45 °C. Flash point, appearance and copper corrosion are also listed in the specification table.
Application
Automatic transmissions specifying an SP-4-type fluid
Use where the vehicle or transmission manual names this fluid type. Confirm the exact fluid specification before filling.
Feature
Low-temperature fluidity
Pour point of -45 °C (ASTM D97) with a viscosity index of 164 (ASTM D2270).
Feature
Viscosity profile
25 cSt at 40 °C and 5.6 cSt at 100 °C (ASTM D445).
Feature
Copper corrosion reported
Copper-strip corrosion at 100 °C (ASTM D130) is part of the published test set.