Nissan 370Z Forum - View Single Post

zman1910 · 11-10-2009, 05:17 PM

A lot of you guys are new to the VQ engines so I'll just say this and let you arrive at your own conclusions.

The reason Nissan people are pushing use of conventional ester oils is bc a lot of their research from the 350Z has led them to believe that early use of synthetic oils are directly responsible for all the oil burning issues they have seen with the VQ. And trust me there are a lot. Anyone that has owned a 350 knows this. Personally, I have owned 2 350's and a G35 coupe. Never once did I use synthetic oils on my N/A Z's. Once turbo'd I immediately made the switch but I also had about 15k on the odo at the time...so I'm sure the piston rings were seated by then. Most good mechanics recommend switching to synthetics around 20k miles for this exact reason.

The VQ is a strange engine so take what you want from this post. There are plenty of threads on "my350Z" to prove this.... specifically of people using royal purple.

The dealer may not be completey bs'ing you on this one. Remember they are in it for the money also so they'd most probably prefer you to get synthetic. Just food for thought.

It sounds as if the guy was trying to honest by saying Nissan engineered the engine that way. It sounds ridiculous but that's probably what Nissan told him to say, so you can't fault him. I have a habit of running conventional oils in my vehicles unless I have some source of FI. People have been using dino oils for a long time now and they are better than ever so I see no reason to change....yet.

11-10-2009, 05:17 PM	#41 (permalink)
zman1910 Enthusiast Member Join Date: Nov 2008 Location: FL Posts: 361 Drives: 2011 Audi S4 Rep Power: 429	A lot of you guys are new to the VQ engines so I'll just say this and let you arrive at your own conclusions. The reason Nissan people are pushing use of conventional ester oils is bc a lot of their research from the 350Z has led them to believe that early use of synthetic oils are directly responsible for all the oil burning issues they have seen with the VQ. And trust me there are a lot. Anyone that has owned a 350 knows this. Personally, I have owned 2 350's and a G35 coupe. Never once did I use synthetic oils on my N/A Z's. Once turbo'd I immediately made the switch but I also had about 15k on the odo at the time...so I'm sure the piston rings were seated by then. Most good mechanics recommend switching to synthetics around 20k miles for this exact reason. The VQ is a strange engine so take what you want from this post. There are plenty of threads on "my350Z" to prove this.... specifically of people using royal purple. The dealer may not be completey bs'ing you on this one. Remember they are in it for the money also so they'd most probably prefer you to get synthetic. Just food for thought. It sounds as if the guy was trying to honest by saying Nissan engineered the engine that way. It sounds ridiculous but that's probably what Nissan told him to say, so you can't fault him. I have a habit of running conventional oils in my vehicles unless I have some source of FI. People have been using dino oils for a long time now and they are better than ever so I see no reason to change....yet. Last edited by zman1910; 11-10-2009 at 05:23 PM.