Quote Originally Posted by jvnj View Post
Hi dr. d.

My car never experienced overheat, also the "slight" knocking occurs only during the initial run (which goes away after several kms of travel), and also when it is filled by 91 RON. But if I use a 95 RON, definitely there's no knocking issue. What you said about the carbon gunk strike me, as I usually baby my ride, and I only travel short distances daily. I think I need to stretch its legs, perhaps an Italian tune-up? . Also I forgot to mention, I haven't changed the plugs yet, could this also contribute to the slight knocking issue? Thank you for sharing your thoughts dr. d and Magnus888
an italian tune up on the way to some delicious eating place up north or down south, is tastier than going to the talyer.