Recently, ExxonMobil received notification that Shell claims Mobil Delvac 1300 Super 15W-40 does not meet API CK-4 nor OEM performance expectations for the Volvo T-13 engine test. ExxonMobil wants to assure customers that Mobil Delvac 1300 Super 15W-40 carries valid OEM approvals and API CK-4 licensing, which includes passing the Volvo T-13.

 

ExxonMobil will diligently investigate Shell’s accusations and is well-positioned with a fundamental understanding of the Volvo T-13 engine test, as ExxonMobil provided technical leadership in the Volvo T-13 test. 

Download the letter from ExxonMobil here

 

Detroit Diesel has also responded to these claims, stating:

  • Mobil Delvac 1300 Super 15W-40 met all of the requirements to receive an API CK-4 license.
  • Mobil Delvac 1300 Super 15W-40 met all of the requirements for inclusion on Detroit Diesel’s 93K222 approved engine oil list.
  • Inclusion on Detroit Diesel’s 93K222 approved engine oil list is at the sole discretion of Detroit Diesel Corporation. For further information, please see 93K222 Approved Products List.
  • The Volvo T13 engine test is approved by ASTM, API, ACC, EMA, DDC, and other organizations.
  • The precision statement for the Volvo T13 engine test is available in ASTM D 8048.
  • The Volvo T13 engine test data for Mobil Delvac 1300 Super 15W-40 met the requirements for API CK-4 and DDC DFS 93K222.
  • Any and all public claims that a Detroit Diesel-approved product does not meet Detroit Diesel specifications shall only be communicated by Detroit Diesel Corporation. 

Download the letter from Detroit Diesel here

 

Volvo and Cummins have shared statements confirming that Mobil Delvac 1300 Super 15W-40 meets their specifications and that all approvals and certifications remain intact:

Volvo Statement:

“Volvo confirmed that the Volvo VDS-4.5 and Mack EOS-4.5 approvals for Mobil Delvac 1300 Super 15W-40 remain intact based on the fully compliant data set originally submitted, which includes passing Volvo T-13 test results for oxidation and viscosity increase at the more stringent Volvo limits.”

Cummins Statement:

“Cummins confirmed that Mobil Delvac 1300 Super 15W-40 continues to meet their CES 20086 requirements validated by the product’s inclusion on the CES 20086 Oil Registration List posted on Cummins QuickServe Online.”

 

Read more regarding these claims on Jobber’s World