STP® Extended Life Antifreeze/Coolant

STP® Extended Life Antifreeze/Coolant is a long service life product based on a proprietary organic acid technology (OAT). It is free of silicates, phosphates, borates, nitrates, nitrites and amines.

It meets the performance requirements of the coolant specifications:

  • ASTM D-3306
  • GM 6277
  • Japanese Standard JIS K2234
  • VW TL 774D
  • Ford WSS-M97B44-D

It is fully compatible with other similarly formulated OAT coolants and is recommended for use in newer model foreign and domestic cars and light duty trucks.

When properly diluted and added as an initial fill, it provides up to 250,000 km or 5 years service life protection.