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Old 04-25-2010, 05:43 PM   #26
DONx3
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I have wondered about this before but bottom line there is no best oil. I think we have this inclination that we want an easy and simple answer. Also, I don't know when this rotella band wagon started either. It's like a drug that will give your car psychedelic powers.
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Old 04-25-2010, 05:56 PM   #27
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Quote:
Originally Posted by DNA Motoring View Post
yeah but german castrol is not syntec tho is it
The only German Castrol is Syntec 0W-30. It is made from Group IV PAO base stocks with some ester additives, unlike the rest of the Syntecs which are Group III.

The N. American Syntec's (5w30, 10w30, etc.) aren't that impressive, IMO. That may or may not make a difference depending on your application and your oil change interval.

-Dennis

Last edited by bluesubie; 04-25-2010 at 06:05 PM.
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Old 04-25-2010, 05:58 PM   #28
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mobil 1 synthetic 5w30
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Old 04-25-2010, 05:59 PM   #29
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GC ftw
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Old 04-25-2010, 06:03 PM   #30
bluesubie
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Quote:
Originally Posted by DONx3 View Post
Also, I don't know when this rotella band wagon started either. It's like a drug that will give your car psychedelic powers.
The Rotella band wagon got popular elsewhere on the web when the SM/GF-4 oil specs came out with less anti-wear additives.

As more and more scoobie owner's starting having bearing problems, they looked to the more robust oils for protection.

Like a drug? See the quote in my thread above by a tribologist. That's a no BS recommendation. I would run it, but I don't want to give up Friction Modifiers which diesel/gas oils do not have. Friction Modifiers help with fuel economy and may make you go FaSTaR.

-Dennis
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Old 04-25-2010, 06:08 PM   #31
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safflower oil...its got a really high smoke point
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Old 04-25-2010, 06:14 PM   #32
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davenow,

so you do not recommend a 15w-40 oil in a stock motor??

what sort of negative side effects can one see/foresee by using this oil in a motor thats never been cracked open for any reason.

reason i ask is i use the rotella 15w-40 during the summer.
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Old 10-10-2019, 10:49 PM   #33
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Quote:
Originally Posted by XanRules View Post
There really isn't any best oil, but many of us are having great results with Shell Rotella T Full Synthetic 5w40.
All the 5w40 i found are for diesel engines only. Is that the one you were talking about?
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Old 10-11-2019, 10:55 AM   #34
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Quote:
Originally Posted by rglvlsc View Post
All the 5w40 i found are for diesel engines only. Is that the one you were talking about?


Rotella T6 5W-40 used to be a mixed fleet oil that carried both gasoline and diesel certifications. However, despite actually reducing that cat killing phosphorus Shell decided that the phosphorus was too high and did not bother to obtain the API SN spec.

Their new mixed fleet Rotella is T6 5W-30 Multi Vehicle. Much less ZDDP to meet the newer diesel specs and is API SN.
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Old 10-11-2019, 07:13 PM   #35
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Hard to believe people pay $30K for a sports car and purchase cheap Rotella oil from Wall Mart.
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Old 10-11-2019, 07:46 PM   #36
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Quote:
Originally Posted by rglvlsc View Post
All the 5w40 i found are for diesel engines only. Is that the one you were talking about?
Really? A 9 year old thread bump?
Quote:
Originally Posted by surfncnow View Post
Hard to believe people pay $30K for a sports car and purchase cheap Rotella oil from Wall Mart.
It ain't cheap for me! Its 20 bucks for 4 quarts plus another 6 bucks for the 1 qt.

Its getting changed every 3-5k miles anyway so honestly it doesn't even matter what brand you get.
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Old 10-11-2019, 07:51 PM   #37
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Quote:
Originally Posted by Jersey Man10 View Post
Really? A 9 year old thread bump?It ain't cheap for me! Its 20 bucks for 4 quarts plus another 6 bucks for the 1 qt.

Its getting changed every 3-5k miles anyway so honestly it doesn't even matter what brand you get.


You can get a 5 qt jug of oil that meets Porsche A40 specs for under $30 from Wally World or Amazon. Oil is cheap in the U.S.
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Old 10-11-2019, 09:42 PM   #38
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Quote:
Originally Posted by surfncnow View Post
Hard to believe people pay $30K for a sports car and purchase cheap Rotella oil from Wall Mart.
Cost per ounce has low relevance on quality per ounce.
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Old 10-13-2019, 04:51 AM   #39
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Quote:
Originally Posted by Otto Man View Post
Cost per ounce has low relevance on quality per ounce.
edit Wrong post

Last edited by surfncnow; 10-13-2019 at 01:10 PM.
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Old 10-13-2019, 02:36 PM   #40
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Quote:
Originally Posted by Jersey Man10 View Post
Its getting changed every 3-5k miles anyway so honestly it doesn't even matter what brand you get.
This. Proper OCIs are much more important for the average person than the brand of oil. Your driving style and proper maintenance are a more important consideration.
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Old 10-14-2019, 10:13 AM   #41
Norm Peterson
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Quality-wise, I think you want to be using full-synthetic in SN+, which is supposed to have been formulated with reducing LSPI in mind (maybe think turbocharging and direct-injection gasoline engines here). Anything with GM's Dexos Gen 2 stamp should meet this, and FWIW I've been using Valvoline Full Synthetic Advanced.


It's probably a good thing to have brought this thread back to the top, but maybe post #1 should be edited to direct people down to the 2019 portion of the discussion.


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Old 10-14-2019, 11:42 AM   #42
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Quote:
Originally Posted by surfncnow View Post
Hard to believe people pay $30K for a sports car and purchase cheap Rotella oil from Wall Mart.
the wrx can be had for around $25K

That is essentially the lowest cost for a new car in this country. It's really that hard to believe someone would buy one of the cheapest cars available and buy oil at Walmart?
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