Oil question

Nissan 350z / Nissan 370z general community discussion forum
Capo788878
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Joined: Wed Jul 29, 2015 6:08 am
Car: 2003 Nissan 350Z

Oil question

Postby Capo788878 » Wed Jul 29, 2015 6:21 am

So I just bought a 2003 350z with 75,000 miles on it. I want to do a oil change but I'm not sure what oil is in it synthetic or conventional. I want to run a full synthetic.What should I do? I heard switch from conventional to synthetic at a high millage (60k)can cause leaks.


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Rogue One
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Car: 2011 Nissan Rogue SL
2012 Nissan Rogue SL
2012 Honda CR-V LX
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Re: Oil question

Postby Rogue One » Wed Jul 29, 2015 6:31 am

Welcome to NICO! Just a heads up, I've deleted your duplicate post. It's best to keep your thread in just one area to avoid confusion.

As for the oil, since your changing it, what's currently in your engine is irrelevant. I'm not familiar with the claims of leaks when switching to synthetic, but I'd suggest a synthetic blend designed for high mileage.

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djwarner
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Joined: Sat Jan 23, 2010 6:07 pm
Car: 1971 240Z Series I
2006 350Z
Location: Central Florida

Re: Oil question

Postby djwarner » Wed Jul 29, 2015 8:59 am

Early Mobil One used to seep through gaskets. However, our engines use RTV as sealants instead of paper gaskets.

Synthetic oil is specified for you car, use it.

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cincysilvias14
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Joined: Tue Aug 21, 2012 12:33 pm
Car: 2008 350z touring
2004 350z enthusiast
Location: Cincinnati, OH

Re: Oil question

Postby cincysilvias14 » Sat Aug 08, 2015 4:31 pm

^ that. i use valvoline personally thought about royal purple but idk if its justified for mostly dd.

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djwarner
Posts: 407
Joined: Sat Jan 23, 2010 6:07 pm
Car: 1971 240Z Series I
2006 350Z
Location: Central Florida

Re: Oil question

Postby djwarner » Mon Aug 10, 2015 7:17 am

At one time there was a significant difference between the premium synthetics, ie Royal Purple, and others. Today, not so much, Mobil 1 purity, etc, is very close.

If you want to learn about oil than you will ever need, check out:

http://www.bobistheoilguy.com/


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