Extended Drain Intervals


AMSOIL 100% Synthetic Signature Series 5W-30 Motor Oil (ASL) delivers extraordinary lubrication in all types of automotive gasoline engines. By combining the industry-premier synthetic technology with AMSOIL premium additives, AMSOIL ASL exceeds the higher performance demands of modern engines. It withstands the stress of higher horsepower, higher heat and complicated emission control systems. AMSOIL Signature Series Synthetic 5W-30 Motor Oil is engineered to outperform competitive conventional and synthetic motor oils. It delivers long-lasting performance and protection.


AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your engine.


AMSOIL Signature Series Synthetic 5W-30 Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline fueled vehicles as follows:


AMSOIL Signature Series 0W-30 Synthetic Motor Oil (SSO) is the industry benchmark in lubrication technology. Engineered with the world’s finest synthetic base oils and high performance additives, AMSOIL Signature Series 0W-30 is designed for those who demand the absolute best in motor oil performance. The exclusive “extended drain” formulation delivers superior engine protection and maximum fuel economy. AMSOIL Signature Series 0W-30 is a premium grade synthetic motor oil that exceeds the requirements of modern, high-performance engines and older engines. It replaces other 0W-30, 5W-30 and 10W-30 motor oils and consistently outperforms competitive conventional and synthetic motor oils.


AMSOIL Signature Series 0W-30 Synthetic Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline fueled vehicles as follows:



               *OEM - Original Equipment Manufacturer


  1. Engines operating under modified conditions(non-stock) are excluded from extended drain recommendations.  Examples include the use of performance computer chips; non-OEM approved exhaust, fuel or air induction systems; and the use of fuels other than those recommended for normal operation by the manufacturer.
  2. Mechanically sound engines are in good working condition and do not, for example, leak oil or consume excessive amounts, are not worn out, do not overheat, do not leak anti-freeze and have properly working emission control systems.  Amsoil recommends repairing malfunctioning engines prior to the installation of Amsoil synthetic oils.
  3. Personal vehicles frequently travelling greater than 10 miles (16 km) at a time and not operating under severe service.  
  4. Turbo/supercharged vehicles, commercial or fleet vehicles, extensive engine idling, use of Amsoil motor oil in vehicles with more than 100,000 miles without prior use of Amsoil motor oil, daily short trip driving less than 10 miles (16 km), frequent towing, plowing, hauling or dusty condition driving.

 

AMSOIL Ea full-flow oil filters are designed for extended drain intervals. They stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL full-flow oil filters.