Hey i don't know if this is the right place to post this so tell me if its not. This is my first post for the site. I have owned my 05 z for about 6 months now. I recently changed my oil and rear diff fluids to Royal Purple 10w30 in engine and 75w90. I noticed that i now have a slight tick/knock in the engine. What is this. Did i do something wrong. Is it too late to switch back. Please give answers fast because this is my daily driver. Im new to 350zs. I have always worked with Subarus. Thanks

 

Wrong forum. This is where we congratulate new 350Z owners.

 

Moved thread and edited thread title to reflect thread content...

 

why not try changing the oil to something else and see what happens?