Using conventional oil you're looking at a recommended drain interval of every 3,000 miles. Using Amsoil Signature Series synthetic you can extend your drain interval to every 25,000 miles.

When we learned that the Amsoil Dual Remote Oil Filtration System, in combination with its full-synthetic 15-40 Heavy-Duty Diesel & Marine Motor Oil, could safely extend oil changes up to 60,000 ...

AMSOIL Signature Series Synthetic Motor Oil is available in seven viscosities: 0W-20, 0W-40, 5W-20, 0W-30, 5W-30, 10W-30 & 5W-50. It offers guaranteed protection in normal service for extended drain ...