Engine ping under light throttle

PaulNYz

Just out of curiosity, what would switching to ester do to get rid of the ping?

Jhill

He is thinking you are hearing the vvel system and not ping as it is known to be a noisey valvetrain. I was on the assumption you guys are already running a high grade oil (I hope).

ZoomZ

Yes, as Jhill has described. The VVEL was designed with the idea that its components surface coating ( Nissan calls it Diamond like coating) would actually interact, on a molecular level, with the Ester oil and provide a "constant" film of lubrication to prevent this "tick" "chatter" "interference" or what ever you like to call it.

It was more apparent in the Infinity Cars with the VQ37VHR engine, because the cars had better sound insulation than the Z, so the theory is, those owners picked up on it versus us deaf Z drivers.

FERRARI

Havent you guys ever heard of MOTORKOTE ?

ZoomZ

Just did.

Joking aside, do tell your experience.

A quick google search and looks like more Snake oil.

Jhill

No thanks, don't believe in additives not engineered to be in the formula to begin with. The claim is it is a generic fiction reducing coating on sliding parts which really isn't the same thing as what ester oil is for. The theory of esters is they bond at a molecular level with a pos and neg charge. If you were really concerned about it only being a friction reducer you can just buy a high grade synth oil made for flat tapet cams (has a high zinc content).

Personally I use amsoil which is a POA base synth but have heard it has esters and have heard it doesn't so don't know who to believe but have used amsoil forever with no issues and always ranks among the top. If really concerned about the ester oil then redline and Motul both make an ester based synthetic. Nissans is a conventional oil with esters added I believe so not as good as a high grade iv or v synth.

Pros and cons to both, supposedly the esters don't do as well if on a longer service interval as the POA.

Can go to bobistheoilguy and get lost for hours with tons of good info.

ZoomZ

You do know it WAS NOT me who suggested Motorkote? I fully agree with what you have said.

Jhill

Yea my mistake I realized after typing it all. Figured people would know who I meant.

nis350

we use Mobil one full syn 5-30.

it is definitely not the vvel based on the condition it occurs as stated in the original posts.