Talk Morgan Forums Morgan Sports Cars Morgan Plus Four, Supersport & Plus Six (CX & CXV Generation Vehicles) Engine Oil CX Plus Four

Is it only me?I have tried to find engine oil to the spec in the PlusFour handbook but I am confused by the amount of 5w30 oils available but none as per the handbook. What is everyone else using? Thanks in advance.

I use 5W30 from Liqui Moly

It should be API SP which was designed to reduce the chances of low speed pre-ignition - LSPI which is an issue with turbo-charged engines. Its should also have a medium ash content due to the CAT. Fully synthetic is also a requirement due to the high temps in the turbo. BMW also recommend an LL spec oil. Put all this together and you end up with Castol Edge ( the API SP version which is a later spec) or Motul 8100 eco-clean 0w-30, both of these are used by at least one dealer I spoke to. I believe the factory use a Miller oil but I dont know what the precise spec is. Frequent oil changes are probably more important that the spec as BMW have a habit of leaving the oil in too long! Good luck!

Thank you guys.

I cant find Castrol Edge with that spec even on the Castrol website, also loads of Liqui Moly 5w30 :-(

my dealer uses Petronas. they do the correct spec.

Hi, not sure where you are but I found this on Amazon - API SP etc etc
https://amzn.eu/d/1hGbtDk

The UK manual says 0w-30 - is this available in 0w?

Indeed, manual states 0W30 full synthetic.
As a retired Shell employee, I insist my dealer uses Shell oil… point is that the oil meets the proper requirements.