What did you do with your Z today? 🙋🏻‍♂️

[BigBlue]

Doesn't the manual say to overfill the oil by a certain amount for track use? I dont have access to my manual as im on a trip, but I remember reading that in my 2024 performance manual.

Your correct Sir. It shows running 9mm's over the high mark.

 

[FSUZ33]

Thanks, will do. I moved it around right after I got it trying to find a good position vs touching the headliner. Might not be able to keep it from touching, but maybe I can find a spot where it doesn’t sound like 2 balloons rubbing together. Passenger seat touches too, although it doesn’t make noise.

Or…

 

[Nis Mo Z]

Anyone else with a NISMO have issues with the top of the seats rubbing the headliner? My seat has gotten noisy/squeaky, and I thought it was the cushioning behind my upper back, but it’s the top of the seat vs the headliner. Not sure how to solve it.

I don't have that issue in my Nismo. Is your seat pushed all the way back where the roof line slopes a bit?

 

[FSUZ33]

It’s either all the way back or one notch forward. I’m 6’2”, but all leg. Seats all the way back in both of my Z33s, but those didn’t have a telescoping wheel. I got used to it some time in that 22 year span though.

Someone here made, or had made, replacement brackets for the rear of their seats to make more headroom for when they wear a helmet. Can’t find the post. I have some machining skills and access to equipment (manual, not CNC). If i cant find a good position and the brackets aren’t complicated maybe I could make some. For the driver side anyway. Last resort, obviously.

 

[BigBlue]

Funny enough i already had the upgraded oil pan from Z1 to install. I most certainly wasn't using the best type of oil for track use. I was using the OEM OW-20 but really i was just doing that to cover my ass with warranty along with making sure I do all fluid changes at a Nissan Service Center. I have a great relationship with my local dealership thankfully so i'm hoping that decision will pay off....

Good for you having your services done at the dealership. We're you following the 10k recommended oil changes. In the manual for the Performance trim model it calls out to over fill past the high mark on the dip stick before you do any track sessions. This prevents oil pump cavitation. When you take it in for warranty, they'll access the freeze frame data that captures and saves the exact moment any out-of-range events happened and for how long ie high temps and oil pressure. Here's hoping they'll warranty your engine. This would require a long block(with heads) replacement due to the metal/oil circulating through the engine. Any and all sub components bolted to the engine that use/sees oil pressure to work would also have to be flushed/cleaned or replaced. The last part is paramount and the difference in your engine dying another early death. Good luck and please keep us informed on your progress.

 

[Drago86]

Your correct Sir. It shows running 9mm's over the high mark.

Thank you for looking it up. So it sounds like that engine failure could be due to oil starvation from not following the manuals recommendation for prepping the car for track use.

Can anyone think of any reason we shouldn't just be always filling our cars 9mm over full? The only one I can think of is gas mileage, which is why they probably underfill in the first place. I think Nissan was very scared they were going to sell a ton of Z's in the US an ruin their CAFE, hence the watery 0w-20 and underfill.

 

[Ikazuchi6]

Thank you for looking it up. So it sounds like that engine failure could be due to oil starvation from not following the manuals recommendation for prepping the car for track use.

Can anyone think of any reason we shouldn't just be always filling our cars 9mm over full? The only one I can think of is gas mileage, which is why they probably underfill in the first place. I think Nissan was very scared they were going to sell a ton of Z's in the US an ruin their CAFE, hence the watery 0w-20 and underfill.

I agree with this logic. I wonder what the overfill amounts to, 1qt, 1/2qt, etc?

Took a rock to the windshield by a dump truck going the other way, turned around to see if I could get any info off the truck (sometimes they will pay for a windshield), and immediately got hit by another rock from another truck. Like literally 60 seconds apart. I couldn't catch the first truck due to slower traffic that pulled out in front of me.

Have an appointment Monday to have it repaired if it doesn't spider out between now and then.

Friday had a new Integra Type S park next to me. They are all manual transmission. Good looking car, apparently they have the Honda Civic Type R engine and the 3 exit exhaust. I do like the wheel and tire combination, 265/30/19 Michelin Pilots...I wish Nissan would have done the same for us. Today I had a Type R park next to me.

 

[KrackaC8]

I agree with this logic. I wonder what the overfill amounts to, 1qt, 1/2qt, etc?

Our dipstick min & max marks are 25mm apart, which should be equivalent to approximately 1 quart.

9÷25=0.36

Therefore, a 9mm overfill should be roughly equivalent to 0.36 quarts.

This tells me that a complete oil drain & fill + filter change, adding a 9mm overfill, should be almost exactly 7 qts with my Dorman aluminum oil pan.

Overfilling for track use per the owners manual is common practice with GM V8s too.

 

[trackratZ]

Our dipstick min & max marks are 25mm apart, which should be equivalent to approximately 1 quart.

9÷25=0.36

Therefore, a 9mm overfill should be roughly equivalent to 0.36 quarts.

This tells me that a complete oil drain & fill + filter change, adding a 9mm overfill, should be almost exactly 7 qts with my Dorman aluminum oil pan.

Overfilling for track use per the owners manual is common practice with GM V8s too.

It's also common with Porsches, my Cayman S always sees 1 qt over at the track, even with my baffled pan. I bet it's safe to add 1/2 to 1 qt to our VR30s, but to be confirmed when I take it out there.
I think still the most pain is keeping the gas tank level at least half full to prevent fuel starvation, Nissan hasn't changed the pick-up design in years!

 

[up4speed]

While some cars say to over fill a little, I don’t think you guys are reading the manual accurately. I also know of some cars that will give a big problem if they are overfilled! So we have to make sure we get it right…..
The way I read the owner's manual, it appears that they want us to fill it from Max, to Max -9mm (not +9mm like was mentioned). So what I think what they are trying to say, is that for normal driving it has to be anywhere from Min to Max. But for performance driving it has to be between Max and 9mm below max only. (Not 25mm all the way down to the Min line) so basically from 2/3 full to Max.
Here is the part of the owners manual that I’m referring to:

 

[thesilverbullet]

I agree with this logic. I wonder what the overfill amounts to, 1qt, 1/2qt, etc?

Took a rock to the windshield by a dump truck going the other way, turned around to see if I could get any info off the truck (sometimes they will pay for a windshield), and immediately got hit by another rock from another truck. Like literally 60 seconds apart. I couldn't catch the first truck due to slower traffic that pulled out in front of me.

Have an appointment Monday to have it repaired if it doesn't spider out between now and then.

Friday had a new Integra Type S park next to me. They are all manual transmission. Good looking car, apparently they have the Honda Civic Type R engine and the 3 exit exhaust. I do like the wheel and tire combination, 265/30/19 Michelin Pilots...I wish Nissan would have done the same for us. Today I had a Type R park next to me.

It’s nice but…
it’s $60k, built in the US, fwd, 4dr, struts (instead of dbl wish bone), hole in the hood and massive wheel hop. i’d rather have the built-in-Japan CTR.

with that said the engine is rock solid w/ rock solid self-tuning software & support.

 

[Nis Mo Z]

While some cars say to over fill a little, I don’t think you guys are reading the manual accurately. I also know of some cars that will give a big problem if they are overfilled! So we have to make sure we get it right…..
The way I read the owner's manual, it appears that they want us to fill it from Max, to Max -9mm (not +9mm like was mentioned). So what I think what they are trying to say, is that for normal driving it has to be anywhere from Min to Max. But for performance driving it has to be between Max and 9mm below max only. (Not 25mm all the way down to the Min line) so basically from 2/3 full to Max.
Here is the part of the owners manual that I’m referring to:

I figured there was more to this story. I think the problem for the rod knock situation earlier is 0w20 being used on track, especially the Nissan OEM which might be basic ass synthetic. I use Castrol Edge 0w20 in my Nismo for daily driving but if I was doing any track work I'd use 0w30/0w40.

 

[Ikazuchi6]

It’s nice but…
it’s $60k, built in the US, fwd, 4dr, struts (instead of dbl wish bone), hole in the hood and massive wheel hop. i’d rather have the built-in-Japan CTR.

with that said the engine is rock solid w/ rock solid self-tuning software & support.

Oh I agree. And still only 320 hp.

 

[Drago86]

While some cars say to over fill a little, I don’t think you guys are reading the manual accurately. I also know of some cars that will give a big problem if they are overfilled! So we have to make sure we get it right…..
The way I read the owner's manual, it appears that they want us to fill it from Max, to Max -9mm (not +9mm like was mentioned). So what I think what they are trying to say, is that for normal driving it has to be anywhere from Min to Max. But for performance driving it has to be between Max and 9mm below max only. (Not 25mm all the way down to the Min line) so basically from 2/3 full to Max.
Here is the part of the owners manual that I’m referring to:

Thank you for posting the manual, I agree its just telling you to make sure the oil is full full.

The only question I still have is do they mean to set it to full or full-9 at cold, which would still show overfull at hot.

 

[up4speed]

Thank you for posting the manual, I agree its just telling you to make sure the oil is full full.

The only question I still have is do they mean to set it to full or full-9 at cold, which would still show overfull at hot.

Good question. It is clearly specified under the section where they say how to check the oil. I’m going out of memory, but I think they say that you warm it up, then let it sit for a certain amount of time, and then check it. So realistically, it’s the level when it’s warm, and had a chance to settle a little bit.