yong,
some application, we do still need to use additive.... but i believe under normal situation, not you & me... haha...
for example, in desert, under extreme heat they need to have extra protection or else the engine oil is very fast will be extreme hot and break down easily...
in fact the good shock use additive too... have you been using the motocross bike, where they can tune their shock ? actually they need to use additive, and many type to suit different terrain....
there is also some specific application like the marines... they also get normal engine oil like what we use too because the marine oil is very expensive... so to cut down cost, what they can do is to use normal engine oil and + the selective additives to meet their requirement
some application, we do still need to use additive.... but i believe under normal situation, not you & me... haha...
for example, in desert, under extreme heat they need to have extra protection or else the engine oil is very fast will be extreme hot and break down easily...
in fact the good shock use additive too... have you been using the motocross bike, where they can tune their shock ? actually they need to use additive, and many type to suit different terrain....
there is also some specific application like the marines... they also get normal engine oil like what we use too because the marine oil is very expensive... so to cut down cost, what they can do is to use normal engine oil and + the selective additives to meet their requirement


and let them cascade it from there.