oil change interval

JARblue · 06-21-2020, 10:26 AM

Quote:

Originally Posted by Inflaymes

Why would you change oil, especially oil designed to go 7-10k between changes, (AMSOIL Signature is 25k or 1 year oil) every 6 months? That is completely idiotic and wasteful. Hell, even every 3k miles with the synthetics we have today is stupid. This isn't 1980. I already have vehicles I drive every day, including a Harley. I only drive 2 miles to work, so, NO, I'm not driving my Z to work every night so it can sit there. Why do I have my car? Because I CAN. I can afford it. I can afford it sitting in my garage as well. I enjoy driving it a few times a week.

lol calm down killer

I was simply asking a question in response to the OP which specifically mentioned 6 month recommended OCI. I wasn't even referring to the mileage interval...

And driving it a few times a week does not beg the question why do you have the car

Sagittarius_A · 07-10-2021, 02:10 AM

Changing modern synthetic oil every 3-4k miles is just plain uninformed and a waste of money. Unless you are tracking your 370z, there is no reason to do this.

A good oil and filter will hold up for 5-7.5k miles under hard street driving conditions provided you let the car warm up properly and don't excessively idle the engine.

Go look at some oil reports on bobistheoilguy forum and you will see there is absolutely no need for these non-sense recommendations.

I change my tuned 15' Nismo oil at around 5k-7k depending on how hard I've been driving and the temperatures it's been experiencing. I used to use the magical Nissan ester oil until about 35k miles, then switched to mobil 1 and I don't know any excessive VVEL noise. Speaking of the Nissan ester oil, that is not a full synthetic -- so if you are running that I would change it at 5k, but it's not worth the price.

To end things, the oil filter does more of a job then the oil brand itself. Make sure you get a top of the line filter and you'll be insured that all the garbage is sticking inside there.

The same gentlemen who said change your oil at 3k here, told someone in the classified forums that his v2 nismo front wheels were out of specification. A simple google search would have shown him he was incorrect. Let's do a little research before recommending people bad advice.

JARblue · 07-10-2021, 06:14 AM

Quote:

Originally Posted by Sagittarius_A

Changing modern synthetic oil every 3-4k miles is just plain uninformed and a waste of money. Unless you are tracking your 370z, there is no reason to do this.

Mileage is not the only factor that should be considered when determining a proper OCI. Once a year is a good rule of thumb especially if the car is not driven much. The OP asked specifically about time interval.

Quote:

Originally Posted by Sagittarius_A

The same gentlemen who said change your oil at 3k here, told someone in the classified forums that his v2 nismo front wheels were out of specification. A simple google search would have shown him he was incorrect. Let's do a little research before recommending people bad advice.

This feels like a dig at me... I'm guessing you are referring to that typo where I accidentally said 255 instead of 245

And where did I say 3K mile OCI in this thread?

Zoren 370 · 07-10-2021, 07:14 AM

Dang after 10 years we are still discussing oil!!!

You got to love this forum it never aged!

JARblue · 07-10-2021, 07:26 AM

Quote:

Originally Posted by Zoren 370

Dang after 10 years we are still discussing oil!!!

You got to love this forum it never aged!

I bet there's someone out there who has yet to change the oil on their 2009

cv129 · 07-10-2021, 10:05 AM

Quote:

Originally Posted by Sagittarius_A

The same gentlemen who said change your oil at 3k here, told someone in the classified forums that his v2 nismo front wheels were out of specification. A simple google search would have shown him he was incorrect. Let's do a little research before recommending people bad advice.

The tire size was a mistake, but I wouldn’t judge him for that. He’s very knowledgeable about the Z34 and has contributed much here.

BettyZ · 07-13-2021, 03:25 PM

Quote:

Originally Posted by cv129

The tire size was a mistake, but I wouldn’t judge him for that. He’s very knowledgeable about the Z34 and has contributed much here.

I disagree with that wholeheartedly. JAR hoards parts and is personally responsible for the upper oil pan shortage.

07-10-2021, 07:14 AM	#4 (permalink)
Zoren 370 A True Z Fanatic Join Date: Mar 2012 Location: FL Posts: 11,018 Drives: 11 Nissan 370 M6 Rep Power: 1913654	Dang after 10 years we are still discussing oil!!! You got to love this forum it never aged! JARblue, danegrey, Rusty and 1 others like this.

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07-10-2021, 02:10 AM	#2 (permalink)
Sagittarius_A Base Member Join Date: Feb 2019 Location: Tampa, FL Posts: 18 Drives: 15 Nismo;80 930 Turb Rep Power: 7	Changing modern synthetic oil every 3-4k miles is just plain uninformed and a waste of money. Unless you are tracking your 370z, there is no reason to do this. A good oil and filter will hold up for 5-7.5k miles under hard street driving conditions provided you let the car warm up properly and don't excessively idle the engine. Go look at some oil reports on bobistheoilguy forum and you will see there is absolutely no need for these non-sense recommendations. I change my tuned 15' Nismo oil at around 5k-7k depending on how hard I've been driving and the temperatures it's been experiencing. I used to use the magical Nissan ester oil until about 35k miles, then switched to mobil 1 and I don't know any excessive VVEL noise. Speaking of the Nissan ester oil, that is not a full synthetic -- so if you are running that I would change it at 5k, but it's not worth the price. To end things, the oil filter does more of a job then the oil brand itself. Make sure you get a top of the line filter and you'll be insured that all the garbage is sticking inside there. The same gentlemen who said change your oil at 3k here, told someone in the classified forums that his v2 nismo front wheels were out of specification. A simple google search would have shown him he was incorrect. Let's do a little research before recommending people bad advice.