Castrol Magnatec 10W-40 ok for 5K service?
u posted a link b4 for a thread selling the conversion kit right.. that one loh..
fully sync, go for Castrol Edge, Edge Sport(to be confirmed after i try it out tmr),Magnatec 5W-30 and Eneos. trial tested for good performance.
*** loh.. i miss 7478.. i bought 7873.. My CKT's car number.. She just got her car today.. I bought RM5 pau.. RM96 in total..
Damn.. so terrible.. haha.. Time to get bigger brake pumps..
Yeah totally ok.. In fact its the best u can get for a semi..
Actually there is a lot of confusion between weight of the oil.. So here is to clarify once and for all..
The weight of the oil is not actually corresponding to the engine mileage.. the 30/40/50/60 is corresponding to the VISCOSITY CHANGE INDEX of the oil.. That means when an oil is like say moderately thick in room temp, then if its a 30grade oil, it means the viscosity change of the oil will be higher than an oil of 60 grade. The higher the grade, the more RESISTANT is the oil to change its original thickness as the op.temp gets higher..
Why are there so many grades of oil?? First of all u must know there are a lot of different types of engine specs.. Long stroke, short stroke, square engine, turbo charged, supercharged blah blah blah.. As the 30 grade oil forms a thinner film of oil along the cylinder wall, it reduces friction, HOWEVER the downside is the REDUCTION in thermal bearing properties of the oil.. Therefore lower grade oil like 20/30grade is more suitable for short stroke and small capacity engines.. Like Myvi, Viva etc. The engine does not produce a lot of heat, therefore even with the lesser grade engine oil, it still is able to conduct heat away effectively..
As for Campro.. Its a long stroke engine. Technically u can use 30grade oil without any harm to the engine. However due to the thinner film and a reduction in heat bearing capability of the oil, more heat is transferred to the engine block and piston, causing engine block or piston bearing failure if u were driving at high rev for an extended period of time, or u exert extreme load on the engine such as heavy acceleration and redline driving.. Using a higher graded oil is able to improve the top range properties but at the expense of increased friction due to the thicker oil film..
Y turbocharged car needs 60 graded oil? Its because with the boost, u tend to be revving hard most of the time..and the extra pressure in the combustion chamber might cause blow-by failure if the oil film is too thin or the piston rings are too worn out.. Causing premature engine failure.. Therefore a thicker oil is able to counter that measure..
Pity my fingers typing these..
Erm then can confirm ur radiator or the tubing bocor somewhere.. QUickly bring it to SC to rectify.. Probably ur top tank leaking.. Had this problem b4 with my Sentra.