To share information regarding formulation of lubriacnts
All oil use basically mineral based plain oil as base which is further distributed as per quaility ranking in lubricant formulation
HVI high viscosity index base oils
MVI medium " " "
LVI low " " " "
done petroleum material research being my engineering subject and visited all oil refinaries plus lubricant production facilities of all oil marketing companies plus few karachi based companies.Factually speaking its only Caltex in Pakistan who are importing HVI based mineral oil for their lubricant formulation
few prominent chemical additives are added like detergent agents plus corrosion inhibitors,heat resistors(lab names are different) etc
since then using Caltex Havoline but beaware of fact that since caltex delo gold and havoline is most popular with commerical transport owners and due acceptibility FAKE havoline is also marketed by few people so pl be 100% sure about the shop you are buying your oil is selling actual oil
i am brand user and by no means associated to caltex by any way
moreover be mindful if using 5W30 or 10w30 in older cars run over 150000km
secondly its practically tested 100% that no oil available ZIC or Havoline be used more than 3000km if you are keeping your car for long time and love your ride
now i know in reply there may be querries that some members using it over 5000km for Altis or VTI for last five years nothing happen ,tec speaking, how many toyota or honda engines will run plus 200000 km without engine repairs whereas these engines are designed to run well over 300000 km without engine major repairs