Just read this post and back in about 1992 - 93 I was living in west bromwich & working in rugby 70 mile round trip traveling every day, car at time a 1990 montego turbo diesel on part synthetic with slick 50. Basically had timing belt changed of a friday picked up sat morning sat afternoon oil light on

checked oil level all ok checked pressure switch as in area of belt incase of damage when belt changed replaced it still same, elec fault maybe. Went to work mon morning all ok carried on till wednesday speeds around 80-90 where possible. Thirsday morn just got on M6 J7 rattle bang oh dear

into rover dealer dignostic, oil pump failer. No oil had acctually been around the engine since the light came on of the saturday. So I would recomend additives

Knowledge may be one thing but You Cant Teach Experience...