Well the oil feed round the engine is exactly the same as the Coupe 20V Turbo and lots of owners use 15w/50. I have used it on my coupe for about 80k miles so no problem there. Fiat's recommended oil for the coupe is 10w60 Selenia. 15w/50 also allows you to use proper fully synthetic oils such as Motul.
Turbo's going at 50k miles is simply indicative of poor maintenance and/or abuse. They are Garret turbos as used by many other manufacturers, there is nothing inherently unreliable about them. Weak points are front wishbone bushes (replacement wishbones are reasonably cheap), engine mountings at higher mileages (not cheap!), rear radius armsThe FIAT CoupĆ© 20V Turbo was the CoupĆ©ās top spec and was equipped with a turbocharged 2litre Inline-5 engine, coupled to a six speed transmission and powering the front wheels. With 217hp and La "Macchina" fue algo rompedor en los aƱos noventa. El diseƱo, fruto del desarrollo de una idea conceptual de Chris Bangle, era algo totalmente innovador. E