Yes, the ACEA-C6 LSPI and timing-chain tests are the same as in API SP. The only new tests would be the JASO fuel economy and Toyota turbocharger tests to get the ACEA-C6 approval if it was already approved for ACEA C5 and API SP and passed the valvetrain-wear test to the ACEA-C6 criteria.IIRC the Afton Chemical HiTEC 11500 is the additive package I was thinking of:HiTEC® 11500 is a Reduced SAPS additive package with a dedicated Daimler specification profile. Click here to download the PDS today.www.aftonchemical.com
I don't think it would be a stretch for Castrol to claim ACEA C6 if they think their oil meets that specification.
View attachment 126123
View attachment 126124
Note that TBN is different because it is measured using a different procedure.