This problem was solved by toyota. Lets wait and see na lang. Yes diesel here in the philippines is dirty, but the 2ND generation d-4d that toyota put on the hilux will elimate the problem of clooging injectors. I heard lots of cases with that sa trooper.
Simple explanation lang why that won't happen to your hilux...
The d-4d that the new hilux has now is the first in the market with secong generation common-rail.
The 2nd generation common rail is the fuel rail wgich stores the highly pressurized fuel before dispersing to the injectors. With this, it won't clog because the pressure will be like trying to carry an adult elephant on your thumb. Thats how high the pressure is.
The second gen common rail also has a high pressure fuel pump....
another advantage is the 32 bit ecu. Its technology is advanced already and the ECU monitors the temperature, RPM and other factors to control the injection timing.
I hope with these, you will feel more at ease with you r purchase of the new hilux. ...sana you got it from me na lang. heheheeh!
Cheers