I hace a new CDI and have noticed that my beloved Delvac 1 is not on the approved list of Mercedes 229.5 spec sheet. The approved list consists of "Mobil 1 SuperSyn European Car Formula 0w-40", "Pennzoil European Formula Ultra 5w-30", "Quaker State European Formula Ultra 5w-30", and ELF excellium 229.5 5w-30". Has anyone got an idea of oils that are comparable to these, or where I could purchase one of the approved oils? I have a quantity of RedLine 5w-30 motor oil; would this be suitable for this application? Thanks for any opinions.