Guys this should generally be your rule of thumb when choosing the oil you need so that you get the most protection!!!

**Amount of Sulfur in Philippine Diesel fuel >500PPM?
**Is vehicle equipped with Diesel particulate filter?

----if sulfur level in fuel is greater than >500PPM choose CI-4
----if sulfur level in fuel is less than <50PPM choose CJ-4

----if vehicle is equipped with Diesel particulate filter use CJ-4
----if vehicle is not equipped with Diesel particulate filter use CI-4

The main reason why CJ-4 is created is because in other countries
Sulfur levels in the fuel have been reduced(advancement in diesel fuel)
And prolong life of particulate filters and catalytic converters

The TBN ( total base number/ ability to neutralize the acids formed primarily because of high sulfur levels in fuel) is lowered
the CJ-4 oils have lower phosphorus and other anti-wear additives generally termed as ASH...
The lower TBN of CJ-4 oils is due to the fact that the fuel has low sulfur and doesn't not need that much acid combating power

The TBN of CI-4 oils are usually high (10-12) because the fuel that is expected to be used is high in Sulfur.. therefore it contains lots of anti-wear like phosphorus and others to combat the sulfur acid effect....

As with our current sulfur levels in our diesel fuel CI-4 oils would be a better option...
ONCE it has been legalized and less than 50PPm of sulfur is enacted then CJ-4 would be option,,,,