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View Poll Results: Which FULL SYN?
Royal Purple
5
15.63%
Amosil
4
12.50%
Castrol
3
9.38%
Mobil
17
53.13%
*OTHER* - specify in your post plz
3
9.38%
Voters: 32. You may not vote on this poll

Going FI, which Oil to use?

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  #1  
Old 11-29-2008, 04:59 PM
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Question Going FI, which Oil to use?
I just purchased ROYAL PURPLE, and was wondering if most of the members here utilize it or which oil do you all think is BEST?

Any Pro's, Con's you guys would like to discuss would help me a great deal in making my decision. Thanks in advance!!

Thanks Guys!
-WoW
 
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Old 11-29-2008, 05:55 PM
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You need to read the oil anlaysis thread on my350z and you will find our engines really dont like RP.I have been using Mobil1 0w40 ever since i had the Stillen s/c.

Now that i have had the Greddy twins for almost 2 years i still use Mobil1 0w40.
 
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Old 11-29-2008, 08:00 PM
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My vote is for Amsoil 5w30. I was previously using Mobil1 0w40, but recently switched to Amsoil b/c I was getting a lot of blowby with the Mobil1, and my local shop carries Amsoil.

+1 on reading the 350z uoa thread; you'll see u'll want to stay away from RP with the VQ
 
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Old 11-29-2008, 08:36 PM
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castrol syntec..i think its 5w30.. 05 procharged 5at
 
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  #5  
Old 11-30-2008, 03:36 AM
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I use Valvoline fully synthetic. 5w30 in Texas winters, 10w30 in summers.
 
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Old 12-01-2008, 11:24 AM
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Originally Posted by jonnylaw
My vote is for Amsoil 5w30. I was previously using Mobil1 0w40, but recently switched to Amsoil b/c I was getting a lot of blowby with the Mobil1, and my local shop carries Amsoil.
+1, that's all I run.
 
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Old 12-02-2008, 08:11 PM
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Wow - Great info so far!! Thanks as always guys.

I'll throw the RP in my other daily commuter and keep it clear of my VQ. Wow, thanks for giving me the heads up fellas!!

-WoW
 
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Old 12-05-2008, 03:09 PM
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So what's the deal (ie, so "special") about Mobil1 0w40?

Just curious as to why this particular brand and weight is so popular.

Thanks Guys!
-WoW
 
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Old 12-05-2008, 03:20 PM
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been using mobile on 10w 40
 
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Old 12-05-2008, 03:24 PM
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Amsoil is what I use.
 
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Old 12-06-2008, 01:33 PM
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So what's the deal (ie, so "special") about Mobil1 0w40?
 
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Old 12-06-2008, 02:41 PM
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The trick with any oil and added power is to reduce the bearing temperatures under the new higher load to the previous stock state.

The no lead narrower bearings are EXTREMELY sensitive to any oil overheat.

The oil cooler can be more important than the oil.
 
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Old 12-08-2008, 11:43 AM
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Royal Purple and Amosil are the only "true" synthetic oils. I've been using Royal Purple for years in all of my vehicles without any problems.
 
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Old 12-08-2008, 06:24 PM
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Originally Posted by joe603
Royal Purple and Amosil are the only "true" synthetic oils. I've been using Royal Purple for years in all of my vehicles without any problems.
Not true as german castol 0w30 and european mobil1 0w40 are also.
 
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Old 12-08-2008, 11:20 PM
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just mobil1 0w40? no other mobil1 weight?
 
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