Originally Posted by SoCal 370Z Ester is mostly likely in the Castrol GTX formulation. You may be right but when I looked at the data sheet on it I don't
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05-11-2009, 10:23 PM | #46 (permalink) |
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You may be right but when I looked at the data sheet on it I don't recall any specific mention of ester additives. If it's part of the formulation, Castrol apparently doesn't think it's a feature worth touting.
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05-12-2009, 11:01 AM | #48 (permalink) |
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If you're using the oil that's recommended in the Owner's Manual (which is what Nissan Ester oil is), then I think it'd make sense to follow the service intervals in said Owner's Manual.
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05-16-2009, 02:59 PM | #49 (permalink) |
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So this topic is bugging the crap out of me.
Anybody care to clarify... but if an oil is a group V, it contains esters? The question then becomes, how much of the oil is esters. Correct? EDIT: Ok I think I answered my own question. It appears group V doesn't mean it necessarily contains esters, but it groups all oils that don't fit into the first 4 groups. It is that esters are grouped into group V oils. EDIT 2: Would switching to a heavier weight oil have a similar if not the same effect as using a lighter weight, ester oil? EDIT 3: Looks like Royal Purple's Synerlec technology resembles the benefits of an ester oil. Whether it is an ester, I have no clue. Check it out: http://www.royalpurple.com/synerlec-oil-additive.html
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05-16-2009, 03:32 PM | #50 (permalink) | |
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05-16-2009, 03:51 PM | #51 (permalink) |
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I've been conversing with a company called "Amsoil" here in Canada about this very issue. Here's what they told me this week:
Dear ****, I checked with our tech dept. The oils that meet and exceed Nissan specification is made with PAO (polyalphaolefin) base stocks. Ester based oils perform better when compared with conventional lubricants. While PAO has significant advantage and performance over ester based oils. AMSOIL does make ester based oils but they are recommended to industrial application like compressor oils. Using the recommended AMSOIL will not void Nissan warranty since AMSOIL meets and exceeds the specification and performance standards set by Nissan for the 2009 370Z with VQ37VHR engine AMSOIL also allows the convenience of stocking one product for a wide variety of application / models. Best Regards Vijay Parany AMSOIL Servicing Dealer Direct Phone: 1-416-894-2480 Toll Free Fax: 1-888-776-5369 jsp@wboil.com WBoil.com | AMSOIL Oil and AMSOIL Filter Products. Your One Stop Shop for AMSOIL also known as AMZOIL AMSOIL Synthetic Oil Canada. Source of the World's Best Motor Oils and Filters Now, I don't know whether Amsoil is available in the USA. But, I will be giving it a try when my first oil change is due. I'll keep you posted. Here's a link to the oil they recommend: http://wboil.com/amsoil/5w30-synthet...r-oil-asl.html Last edited by 6MT; 05-16-2009 at 03:57 PM. |
05-16-2009, 07:05 PM | #52 (permalink) | |
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Found this from another forum:
Quote:
So according to this guy, Royal Purple is a group V, synthetic oil with ester technology. That makes sense as Royal Purple's Synerlec technology sounds like it is indeed ester based. Here is a description of Synerlec as per Royal Purple: Royal Purple Additive Technology Also, he states Amsoil is a group IV synthetic with group V esters added to the oil. Even though he mentions stay away from Royal Purple, I think what he's saying is that Amsoil will do the same for less. I hate to base my opinion off of one person's remarks, but I had an initial feeling that Royal Purple and its Synerlec technology would be a very excellent choice for the VQ37VHR. We still need independent tests with OUR motor though...
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05-17-2009, 08:27 AM | #53 (permalink) |
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Amsoil is an excellent oil
Amsoil is a IV oil and great for everyday use. It exceeds most oils out there and will do well for extended drain intervals. You can learn more then you want about oils at bobistheoilguy. They are the major forum for oil related issues. Most on the forum like Amsoil and it tests very well in engine analysis. German Castrol is also highly regarded. I think a great oil is a must but will not stop the over heating issues associated with the 370Z. Good oil will however, help lubricate as the temps rise to the high levels that are experienced. It is not always prudent to go to a thicker oil as a thicker oil may not penetrate into spaces that are needed as well as a thinner oil. Again, this is not a simple subject and requires much study into the components of an oil and its' uses on a specific engine.
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05-17-2009, 02:41 PM | #56 (permalink) |
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Chan Chee Hoe
I am aware that Castrol is UK however, an oil favored by many is Castrol Gold or German possibily because it is used often in Porsches and BWW's. The composition is stated to be different then the run or the mill Castrol we usually get in the States. You can find all you want to know about this and other oils at bobistheoilguy.com.
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05-18-2009, 10:15 PM | #57 (permalink) |
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The stuff about Nissan adding nanoparticles of diamondlike makeup to the oil though... I understand that from a science perspective, but it seems odd to me that that would be the case. You would think if that were the case, they would be making a big deal out of it publicly and calling it Nissan Diamond Oil or something, and the price per quart seems low for industrial grab nm-scale diamond particles to be in there. Was that part conjecture, or is it based on data in the patent, or?
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05-20-2009, 11:14 AM | #58 (permalink) |
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I think to much thought is being put into this.
I use Mobil 1, its a true PAO, been used to death, Ferrari uses it on their f1 cars, I think it will be ok on the Z. I have read that high ester based oils are recommended for people who track their cars in high temperature. Since I don't I am ok with not having nissan ester oil. Another interesting thing I came up with is: SAE Technical Paper 2003-01-3119 Which says that engine wear and tear actually decreases with engine oil life. So the more frequent you change your oil the worse it is for your parts. Interesting read.
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05-20-2009, 04:44 PM | #59 (permalink) | |
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Hmm could be. i am just saying what I got from the Mobile 1 guys. Called them up and they confirmed that Mobile 1 is in fact a true PAO, not just the 0w40. They said the advantage of 0w40 is its better in gas milage, but if you do not care, they recommend 5w30. I trust them... but you know how it is, they say anything you want to hear. Anyone have a way to test oils?
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05-20-2009, 05:50 PM | #60 (permalink) |
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The best place for oil comparisons
The best place for oil comparisons is bobistheoilguy.com . They have endless information about all things oil. It is the most comprehensive site for oil related matters. They can get involved about base stocks and actual oil composition but back it up with analysis comparing different oils in different vehicles. If you want to ask questions or just learn, it is an excellent site.
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