Advanced and unique poly-organic acid technology (OAT) delivers fast-acting, long-lasting protection for automotive cooling systems. Mixed with high-purity water to prevent scale and deposits and keep your engine running clean.

See the Product Data Bulletin for full details.

Outstanding Cooling-System Protection

• Superior heat transfer
• Excellent protection against corrosion, freezing and boil-over
• Virtually eliminates scaling problems
• Maximum protection in extreme temperatures and operating conditions
• Long-lasting protection for up to 150,000 miles or 5 years, whichever comes first, in passenger cars and light trucks

AMSOIL Resists Corrosion

In third-party, industry-standard testing, cast-iron and copper plates protected by AMSOIL show virtually no signs of corrosion.^HH

^HHBased on results of the ASTM D2570 corrosion test.

See the Product Data Bulletin for full details.