ok lets see if you guys can help me i have an s13 with rb25. I don't drive it much usually sits in the garage but now i notice when i turn on the car sometimes not all the time it makes a light clicking or ticking noise for about 2 to 3 seconds then it goes away what can this be should i be worried?. im going to change the oil soon hopefully that will make it go away i use 10 40 royal purple, do you guys recommend to use another?