AMSOIL Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil Discontinued

AMSOIL Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil is discontinued and available while supplies last. Customers using this product are encouraged to upgrade to AMSOIL Signature Series Max-Duty 5W-30 Synthetic Diesel Oil.

While our previous-generation synthetic diesel oils set the bar for quality and protection for over 20 years, Signature Series Max-Duty Synthetic Diesel Oil exceeds the latest API CK-4 specification and represents a serious upgrade in protection and performance compared to oils formulated for previous API diesel oil specifications, including API CJ-4 and CI-4+.

  • More piston-scuffing protection for reduced wear
  • Better thermal control to resist oil thickening, aid in cooling and reduce wear
  • Improved shear stability for maximum resistance to oil consumption and wear
  • Enhanced aeration control, promoting oil-pump efficiency, wear protection and heat resistance
  • API CK-4 diesel oils are backward-compatible, meaning they are recommended in all applications specifying API CJ-4, CI-4+ (and prior) specifications.

*than required by the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation.

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We’re sorry to see this one go. I specifically remember talking with AMSOIL Founder Al Amatuzio which oil he thought was the best of the best. He said the Series 3000 Heavy Duty Diesel oil was by far the best synthetic oil that AMSOIL made at the time. This was long before we had current diesel technology with DPF’s, DEF’s and ultra low sulfer diesel fuel. As times have changed, the requirements needed to produce products to meet current oil specs had to be updated. We know there are many older diesel engines that have been using Series 3000 Heavy Duty Diesel Oil, rest assured the recommended replacement of Signature Series Max Duty line of engine oils will perform as promised and then some. Check out the  Turbo Diesel Pickup Truck tab at AMSOIL.com

As always, we’re here to help you find the best products for your application as well as help you get the best pricing on AMSOIL products no matter what. Be sure to check out the AMSOIL Account Wizard tool to find the best AMSOIL account that meets your situation.