Thanks for the advice is Duckhams QS 10W-40 RM semi synthetic oil ok this comes up as suitable but not sure

Hi just joined I purchased a rover 214 SLI from a scrap yard from eBay for restoration it runs and drives no smoke high clutch , just dropped all the fluids full service and fully test — I had one new in 1992 so my family think I am having I late life crisis and I will if the head gasket has gone