100% Synthetic Diesel Oil

Can I use AMSOIL 100% Synthetic Diesel Oil in my diesel engine that requires API CK-4 (or prior) diesel oil?

No, AMSOIL 100% Synthetic Diesel Oil is tailored to meet distinct diesel specifications and is not suitable for API CK-4 (or earlier) diesel applications. Refer to the AMSOIL Product Guide on AMSOIL.com for the latest product recommendations.

Can I use AMSOIL 100% Synthetic Diesel Oil in my gasoline engine?

No, AMSOIL 100% Synthetic Diesel Oil is engineered to adhere to specific American diesel specifications and is not suitable for gasoline applications. For the most current product recommendations, consult the AMSOIL Product Guide on AMSOIL.com.

Can I use AMSOIL 100% Synthetic Diesel Oil in my European engine?

No, AMSOIL 100% Synthetic Diesel Oil is formulated to meet precise American diesel specifications and is not compatible with European vehicle specifications. We offer a comprehensive range of premium Synthetic European Motor Oil for European vehicle applications. Visit the AMSOIL Product Guide on AMSOIL.com for the latest product recommendations.

Can I use AMSOIL Signature Series Max-Duty or Heavy-Duty Synthetic Diesel Oil in my smaller American diesel vehicle?

No, smaller American diesel engines are not designed for API CK-4 (or prior) diesel oils. AMSOIL 100% Synthetic Diesel Oil is specifically designed for smaller American diesel vehicles. Refer to the AMSOIL Product Guide on AMSOIL.com for the most recent product recommendations.

I currently use 5W-30 LS Synthetic European Motor Oil (AEL) or Signature Series 5W-30 Max-Duty Synthetic Diesel Oil (DHD) in my smaller diesel vehicle based on previous AMSOIL recommendations. AMSOIL now recommends 5W-30 100% Synthetic Diesel Oil (DP530). Which product should I use?

You may continue using either of those products if preferred, but moving forward, our recommendation is 5W-30 100% Synthetic Diesel Oil (DP530). It's purpose-built to meet specific diesel specifications. While the aforementioned products cover some of those specifications and offer good protection in those engines, AMSOIL 5W-30 100% Synthetic Diesel Oil delivers even superior protection.

How often should I change AMSOIL 100% Synthetic Diesel Oil?

Adhere to the original equipment manufacturer (OEM) service intervals. Utilize oil analysis to determine the appropriate drain interval when extending beyond the OEM recommendation.

Will AMSOIL 100% Synthetic Diesel Oil protect my emissions system?

Yes, AMSOIL 100% Synthetic Diesel Oil is meticulously engineered to help prolong the life and uphold the efficiency of exhaust aftertreatment systems, such as particulate filters.