u/delusionalsnowman

Hi all, sorry in advance as I know this has been discussed before but I wanted some insight on my case specifically; Is there any objective reason to switch to a thicker oil from the recommended 0w-20 VW508? I change my oil every 3k-3,500 miles using Liquimoly top tec 6200 0w-20 (overkill for intervals but best be safe then sorry), and I was seeing a lot regarding my using a thicker oil being best for long term reliability. This comes up as I have the warranty covered issue where blue smoke is seen at cold starts, and the dealer is going to replace the head and PCV system on the engine; this got me thinking more about long term reliability and wondering if using a different engine oil with a thicker viscosity would prevent issues that may occur in the future in or outside of warranty. Let me know your thoughts and thanks in advance - for further context, the summers in my area are quite hot with most days in the summer surpassing 90 degrees Fahrenheit and are usually in the 100’s by mid day. I do a lot of city driving as well if this is relevant