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T-Cut · 22nd April 2021, 15:48

I believe the ACEA C3 spec requires a fully synthetic type to pass. The MGR specs for engine oil are set out in the Handbook as shown below.

However, using a fully synthetic type with a performance spec exceeding the original isn't going to do any harm. Basically, you're using a more expensive oil than necessary but lots of owners do so now. I think the feel good factor is the main driver, but there's nowt wrong with that.

TC

22nd April 2021, 15:48	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	I believe the ACEA C3 spec requires a fully synthetic type to pass. The MGR specs for engine oil are set out in the Handbook as shown below. However, using a fully synthetic type with a performance spec exceeding the original isn't going to do any harm. Basically, you're using a more expensive oil than necessary but lots of owners do so now. I think the feel good factor is the main driver, but there's nowt wrong with that. TC