TRUEGARD SYN TRANS 668 5 GALLON PAIL

The "668" refers to the ISO VG 668 viscosity grade, which is a high-viscosity classification typically used in heavy-duty industrial transmission and gearbox applications that require thick, high-load protection. This grade is generally not suitable for standard automotive transmissions, which use much lower-viscosity fluids.

Synthetic base stocks generally provide superior oxidation resistance, greater thermal stability across a wider operating temperature range, and longer service life compared to conventional mineral-based equivalents at the same ISO VG grade.

The pail contains 5 gallons (approximately 18.9 liters) of fluid. Whether this is sufficient for a full fill depends on your specific equipment's sump capacity, so always check the OEM manual for required volume before ordering.