hello,
wanna ask turbocharged car owner here, these few days i've been asking around about "which engine oil suitable for turbo system"...
some say:

mineral oil - the molecule is more stable bla bla but i cant find the logic here

semi-synthetic - i saw in some oil ads/flyers suggesting that oil the best for turbo cars

full-synthetic - got ppl said to me that this 1 too light/thin, easily dried up by the temperature
so until now, i still cant decide which 1 is the best for it..