maybe it could be the oil seals in ur turbo are on their way out...
if the seals are leaking oil into ur exhaust as it burns it will be blueish/white.... hence, the smell of oil...
if u say that there isnt any change in power most probably this could be ur prob... very comon prob.. easily...
damn....
are u a car agent???
yeah take supra for an instance
with stock internals the car is almost bullet proof
i know for sure in thailand they are racing toyota 2jz engines producing over 800bhp with stock internals...
now that is an example of being reliable... picture if u have the car...
i would go for the Toyota Celica '91
It's got power est. 260bhp
Durability...
the car rarely breaks down and is quite fuel economic though being a 2.0L Turbo