Switching to synthetic oil problem

[YarisSedan]

Originally Posted by Red Horse

I have a salvage Saturn 1996 sedan sl2 and has a 172,849 mile on it, is it ok to switch to syntetic oil?

I switched to synthetic oil on my 89 acura legend. Had 200k miles on it at the time. First the oil pan gasket started to leak. I fixed that. 2 weeks later the distributer o ring seal started to leak. Fixed that. 2 weeks later the upper valve cover gaskets started to leak. Fixed that. 2 weeks later the side valve covers started to leak so fixed that. Then about a month went by and then the oil cooler seal started to leak. So fixed that. About few months went by then the rear main seal started to leak. Finally just sold the car. All i know is i was driving about a year with no oil leaks till i switched to synthetic and then the nightmares began.