Daihatsu K3-VE engine and Toyota 2SZ-FE engine is very similar, there are 3 type of model which using this engine in Malaysia market, which is Perodua Kembara DVVT, Toyota Avanza 1.3 and Perodua Myvi 1.3.
Since the O.E.M. type of cylinder head gasket for this type of engine is very thin, many of the maintenance personnel is having a problem to effectively seal the oil passages through the engine block. Hence they try to use the Graphite or Silicone type of gasket instead of their original design is metal type of gasket.
So what is the actual problem cause of this kind of sealing problem, as some had commented that the O.E.M. type of gasket, there are additional combustion ring that sitting near the round shape of piston area, which actually made the area become 3 layer instead of 1 layer at other place of the gasket. (See the above picture)