I am wanting to put a thermocouple in my oil pan and was thinking of drilling out the drain plug. Does anyone know the thread size of the plug. I researched and I have found conflicting numbers. I have heard that it is M12-1.25 or M14-1.5. Does anyone know, for sure?
Thanks.

 

i would go with 1.25, you could search for that oil drain toggle switch thingy that people were putting in place of the plug, surely they have the thread.

BTW, thanks for the BOV, it sounds great.

 

I am glad that the BOV worked out for you.

I tried to search for this, even on Google, but came up empty. I found some threads on a few other 350Z sites with people asking the same thing. I have only found confusion. I would just check the plug when I do the next oil change, but I wanted to do the thermocouple at the same time. Somebody should know.