Hey guys a got this problem with my 2010 g37 sedan the engine knocks and goes alway..so if I'm at a light and I floor it when I come to a stop I hear this knocking noise like the car missing oil or something ...also if I shut the car off and turn back on it will knock for about 2 min or so....and then the noise will go alway the car has 36k miles and I'm always on top with my oil changes I use Mobile 1. 5w 30

 

Sorry, but I have to ask. Are you using premium fuel?

 

Also, if you have breather mods without a tune, you may be leaning out and detonating.

 

No backup behind this except my experience but I've found Mobile 1 synthetic has made the valve train noise louder in both my G and Tundra. No idea why this is, but try swapping oil brands next time and see if it goes away. Think I'm going to try Pennzoil platinum next time.

 

I only use 93 bp gas everything stock no mods

 

I read somewhere on the web if you don't do oil
Changes at Infiniti they will void your warranty is that true ???

 

Must be true if it was on the interwebs.

 

Try German Castrol 0-W30. I think you'll like it.

 

I've been using Mobil 5W-30 and my car is now 84k miles and have no knocking sounds whatsoever.

Did you check your oil levels to make sure it was on the correct level? As for warranty, you will still be covered as long as you had regular oil changes, no matter where you get it done. Even if you do it yourself and kept the receipts of the oil you purchased you are still covered.

As for which oil brand to use, it really doesn't matter. What you're using shouldn't be causing engine knock in the first place.

Is it a knocking sound or a ticking sound? If it is a ticking noise and then goes away it may sound like a purge solenoid control valve, which is normal.