synthetic oil
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Joined: Feb 2003
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From: Montpelier, VT
Originally posted by n8vz
to keep your warranty for the transmission, you need to use Nissan's own transmission oil. I heard rumor that it is rebottled Castrol SynTorque? Any confirmation on that?
to keep your warranty for the transmission, you need to use Nissan's own transmission oil. I heard rumor that it is rebottled Castrol SynTorque? Any confirmation on that?
As long as the fluid meets API specs, you can use whatever you want without voiding your warranty. If Nissan forces you to use their fluid only, they have to supply it for free during the warranty period.
The best move you could make for a manual trans is to change to Amsoil. My shifting has improved significantly- no more motchy feel.
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Joined: Aug 2004
Posts: 354
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From: Las Vegas, NV
Royal Purple is definately the way to go. It has been dyno proven to free up some extra hp as well. Check it out at www.royalpurple.com
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Joined: Dec 2002
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From: San Diego
Originally posted by Z'd
Who told you this?? While the AT fluid has a specific Nissan requirement, nothing could be further from the truth on 6MT Zs.
As long as the fluid meets API specs, you can use whatever you want without voiding your warranty. If Nissan forces you to use their fluid only, they have to supply it for free during the warranty period.
The best move you could make for a manual trans is to change to Amsoil. My shifting has improved significantly- no more motchy feel.
Who told you this?? While the AT fluid has a specific Nissan requirement, nothing could be further from the truth on 6MT Zs.
As long as the fluid meets API specs, you can use whatever you want without voiding your warranty. If Nissan forces you to use their fluid only, they have to supply it for free during the warranty period.
The best move you could make for a manual trans is to change to Amsoil. My shifting has improved significantly- no more motchy feel.
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Joined: Aug 2004
Posts: 136
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From: Sacramento
If Amsoil was available (the only had 3qts left) I would have bought that, but I went with Mobil 1 Synthetic.. All of the PURE synthetics are pretty much the same, but I feel that Amsoil makes the best.
Last edited by pyropete; Jan 22, 2005 at 10:23 AM.
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From: Sacramento
Yah ditto.. This was my first oil change, and I noticed that things were a bit smoother sounding. It was not as "raspy" when I revved. But I didn't notice any power gained from an oil change..
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Joined: Feb 2003
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From: Montpelier, VT
Originally posted by n8vz
Amsoil does not make 75W-85 GL-4 Tranny fluid.
Amsoil does not make 75W-85 GL-4 Tranny fluid.
https://www.amsoil.com/storefront/agl.aspx
https://www.amsoil.com/storefront/fgr.aspx
and both can also be used in the rear diff. with no mixing and no additives.
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Joined: May 2004
Posts: 12
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From: Mississauga
I did research to see which oil to use and i found a lot of result that AMSOIL seem to be the best in the market. Here is the link and see it yourself. Mobil 1 is the best to marketed, not best in Sythnetic oil.
http://www.paonline.com/amsdill/g398auto.pdf
*warning: you'll need ADOBE Reader**
Wolf
http://www.paonline.com/amsdill/g398auto.pdf
*warning: you'll need ADOBE Reader**
Wolf
IMHO I really think think that Redline, Motul, Amsoil, and Royal Purple are the best. Engine runs much smoother with these oils and they seem to have the best test results. Mobil 1 seems to be popular for price and that they are readily available almost at any retailer. I would still rather go with the former, those oils work best.
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Joined: Jan 2005
Posts: 115
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From: Newcastle, WA
beware of castor based synthetics like Silkolene's Castorene and Motul... these are castor/ester blends.
castor based synthetics are "all or nothing" synthetics. remember a long time ago the old myth of "once you go synthetic, you can't go back"? and of course we all knew this to be BS...
it's BS with ester based synthetics, like the majority of synthetics on the market today.
but IT IS TRUE about castor based synthetics. once you use a castor based synthetic, you cannot go back to conventional oil.
castor based synthetics are "all or nothing" synthetics. remember a long time ago the old myth of "once you go synthetic, you can't go back"? and of course we all knew this to be BS...
it's BS with ester based synthetics, like the majority of synthetics on the market today.
but IT IS TRUE about castor based synthetics. once you use a castor based synthetic, you cannot go back to conventional oil.
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Joined: Sep 2004
Posts: 371
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From: Miami - FL
Re: Re: synthetic oil
Thats odd cuz its the dealer who recommended the synthetic at 2nd oil change 
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Originally posted by slab25
anybody heard that your not supposed to use synthetic oil in the 350z? the parts clerk at my local dealership told me that nissan doesnt recommend synthetic oil, but he also tried telling me that synthetic oil is for old, worn out engines. also has anybody had any experience with royal purple oils?
--------------------------------------------------------------
Originally posted by slab25
anybody heard that your not supposed to use synthetic oil in the 350z? the parts clerk at my local dealership told me that nissan doesnt recommend synthetic oil, but he also tried telling me that synthetic oil is for old, worn out engines. also has anybody had any experience with royal purple oils?
Last edited by NismoChic; Jan 22, 2005 at 07:00 PM.
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