At the time i got the edge with turbo diesel wording it was all that was available late on evening in a motorshop chain the uk in about 2010 when i needed some to top up
even the standard edge has the same / more approvals than the "older" turbo diesel
Diesel:
SAE 5W-40; ACEA C3; API SM/CF, VW 502 00/ 505 00/ 505 01, BMW Longlife-04, MB-Approval 229.31/ 229.51, Renault RN0700/0710, Meets Ford WSS -M2C917-A, Meets Fiat 9.55535-S2.
newer red top:
SAE 5W-40, ACEA A3/B3, A3/B4, C3, API SN/CF, VW 502 00/ 505 00, BMW Longlife-04, MB-Approval 229.31/ 229.51, Porsche A40, Renault RN0700/ RN0710, Meets Fiat 9.55535-S2, Dexos2*
ive attached the images and also dropped a email to Castrol technical asking them the Engineer at work says their technical support is second to none having dealt with them for years, when i get a reply i'll post it
