What oil to use
 

As above pepole me and my old man are re-building the engine in his 4x4 saff and i would just like to now what oil would be best to use.

Thanks for any help on this

Jamie

7 posts down from where you started a new thread.

https://passionford.com/forum/ford-sierra-sapphire-rs500-cosworth/286673-best-oil-for-my-3dr.html

NOT in a rebuilt engine if new pistons/rings etc, as it won't bed in correctly.
If new bores/pistons then use a decent MINERAL oil, ie NOT fully synthetic, till at least 2000 miles.
tabetha