nissan 3.0ltd failures

in my opion there are few contributing factors in the problems associated with this motor.
1: turbos blowing,maybe the high sulphur content in the fuel causes the oil to thicken and restricts flow.
2: holes in pistons,navara v patrol,navara does'nt have variable van turbo or intercooler.so the parol would run higher EGT"S,in my opinion THIS is the cause of piston failure,maf sensor also plays a big part.
high egt's would only occur when the engine is at high revs and load but this is the problem,it has a cumlative effect gradually burning away at the piston until BANG.
high boost pressure is also in the equation.
what i have done to monitor the high egts' and boost is to fit gauges
if the egt gauge is fitted after the turbo ADD 200c to the reading,i fitted mine before the turbo in the exhaust manifold i think the cost of removing the manifold and new gasket's is worth it.
please dont miss understand me i'm not saying that the navara is exempt from these prblems.
once again my opinion's only.
cheers toohey