Synthetic lubricants consist of a base stock, manufactured through molecular restructuring of the refined products obtained from crude oil, blended with a range of chemical additives to give each lubricant a unique combination of performance properties – the base oil accounts for about 80 per cent of the blend, while the additives, including detergents, friction modifiers, anti-wear compounds and others, make up the remainder. The formulations in the EDGE lubricants range are predominantly synthetic.(BP internet site explanation)
The above is for uninformed public consumption,I work for Caltex/Chevron
There are no references at all in any document(internet) I can find or request from Castrol that discloses if EDGE is a "hydrocracked" group 111 or a PAO group V base stock type oil.In the USA the racing fraternity says stick to German produced Castrol Syntec because it IS PAO based,all the others are group 111 based oils,the vague conflict with what is "Synthetic" and what is Group 111 hydrocracked based is at stake.Is EDGE hydrocracked with pao additives or just fully hydrocracked,or as suggested a refined mineral oil blended with PAO additives.The chronically vague explanation given on the BP site suggests it could be any of the above.
please assist
alan
south africa