My S4 (134,xxx mi) has a minor oil leak, perhaps in one of the engine seals. I know it won't fix itself but I can't afford to fix it for probably another 2-3 months. Is there a product I can safely add to the oil that will slow the leak and not damage the engine or turbos?

 

I wouldn't imagine that an oil additive is a good idea. I'd keep feeding it oil in the meantime.

 

Just don't use any of the ones that thicken the oil! A good one that I've used in the past that's been succesful is the Lucas oil engine oil stop leak. I didn't use the whole bottle either. So try with a half and if it doesn't work put the rest in.