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#1008002 - 10/10/07 09:03 PM Audi S4 4.2 V8 and Approved Audi/VW Oil
mercury26 Offline


Registered: 10/09/07
Posts: 5
Loc: United States
So I recently purchased a 2007 Audi S4 with 4.2 V8, timing chaing and NO direct injection. Since my goal is hold on to the car for an extended period, I definitely want to treat the engine well. Recently, I purchased the following oil for a 2500 mile oil change:

Motul Specific 505.01/502.00/505.0 5w40 (listed at Vollsynthese on the back, 100% Full Synthetic)

I wonder how it compares to the following:

Elf Excellium DID 5w40
Lubro-Moly (Liqui-Moly) Voll-Synthese 5w40

Has anyone done a comparison on these oils?

Thanks in advance,

Chuck

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#1008003 - 10/10/07 09:13 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: mercury26]
Lonnie Offline


Registered: 10/17/06
Posts: 2304
Loc: Los Angles, CA
You have seen the Super-Secret thread?

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#1008004 - 10/10/07 09:19 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: Lonnie]
buster Offline


Registered: 11/16/02
Posts: 29316
Loc: NJ
_________________________
2014 Mazda 3 S GT AT - Castrol 0w20/dealer oil
2015 Mazda 3i SV 6spd MT - Mobil 1 EP 0w20

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#1008005 - 10/10/07 09:32 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: buster]
mercury26 Offline


Registered: 10/09/07
Posts: 5
Loc: United States
The S4 doe NOT have Direct Injection fuel injection system. So no, it will not suffer from the same fuel dilution problem as the RS4. Different cars and different engines.

Cheers,

Chuck

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#1008006 - 10/10/07 10:18 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: mercury26]
Saab9-3 Offline


Registered: 11/30/05
Posts: 440
Loc: Ontario , Canada
I dont think you can go wrong with Elf or Motul. As for the lubromoly, havent used it, or heard much about it yet.

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#1008007 - 10/11/07 12:06 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: mercury26]
RI_RS4 Offline


Registered: 07/18/06
Posts: 1175
Loc: Rhode Island
Quote:

The S4 doe NOT have Direct Injection fuel injection system. So no, it will not suffer from the same fuel dilution problem as the RS4. Different cars and different engines.

Cheers,

Chuck




Mercury, The S4 V8 still suffers from fuel dilution, although at a lower level. Substantial portions of the engine design are similar. The biggest problem with that V8 and the FSI V8 are the three chains used for cam and pump drive. S4 V8's are starting to show problems in later life with cam chain tensioners and cam chain problems. Since there is still some dilution going on, you will see accelerated wear of these components. BTW, I had a B6/S4 before I bought the RS4.

If you want to stay with 502 oil, I would recommend Lubro-Moly Vollsynthese 5w40. It has performed the best out of all the 502 oils in our RS4 testing.

If you are willing to go with a pseudo-502 oil, I can recommend Amsoil European Formula 5W-40, which is an excellent oil, and outperforms any of the "502 approved" oils.

For either of the above two oils, use a 5K oci, until you do a UOA and get direction from someone like Terry Dyson.

However, if you want the best oil for your engine, definitely go with the RLI BioSyn 5W-40 HD oil designed for the RS4. It is perfect for your engine, will allow at least a 7.5K OCI and possibly a 10K OCI, and will reduce cam chain wear.

BTW, you really don't want the cam chain or tensioners to need to be replaced outside of warranty. It's at least a 2-day job and requires the engine to be pulled.

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#1008008 - 10/11/07 12:11 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: RI_RS4]
Camu Mahubah Offline


Registered: 02/04/05
Posts: 3048
Loc: the Sandhills of Nebraska
I do say...rather excellent recommendations from RI_RS4!
_________________________


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#1008009 - 10/11/07 01:55 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: Camu Mahubah]
mercury26 Offline


Registered: 10/09/07
Posts: 5
Loc: United States
Thanks for your input (RI_RS4) and you are right timing chains/tensioners going bad outside of warranty can be very expensive. I had a Passat W8 before my S4 that I purchased used, well at 45,000 miles I was getting excessive noise from the tensioner. Luckily, the car was under warranty or it would have been expensive to fix. My goal is to do a 2500 mile oil change, coming up in the next couple weeks. I will then be switching to Motul and then Lubro-Moly with a 5K OCI. Yes, it will be expensive but worth it to protect the engine. Since I have already purchased the Motul, then I will use it but work on moving on. I did get the Blackstone kit, wonder if the dealership will take a sample for me. I am taking it in for the 5k service trip to get something fixed and an oil change (but bringing my own oil).

Too bad, RLI has not been approved on the VW/Audi oil list, would be a good thing for them. I checked out their website and sounds like they have some nice products.

Cheers,

Chuck

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#1008010 - 10/11/07 02:31 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: mercury26]
RI_RS4 Offline


Registered: 07/18/06
Posts: 1175
Loc: Rhode Island
Quote:

Too bad, RLI has not been approved on the VW/Audi oil list, would be a good thing for them. I checked out their website and sounds like they have some nice products.

Cheers,

Chuck




Chuck, yes it's too bad. But Audi/VW approval costs about $1/4 Million.

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#1008011 - 10/11/07 03:16 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: RI_RS4]
mercury26 Offline


Registered: 10/09/07
Posts: 5
Loc: United States
Yeah, I understand how that goes for a smaller company. Castrol has some deep pockets, too bad a lot their products are not up to snuff.

I will probably use the Lubro-Moly until I am out of the warranty period, and then switch to RLI product.

Thanks again for your help.

Cheers,

Chuck

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#1008012 - 10/11/07 03:48 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: mercury26]
buster Offline


Registered: 11/16/02
Posts: 29316
Loc: NJ
I'd listen to RS4.:) Amsoil 5w-40 if you can't use the RLI 5w-40. I would also like to see someone try Redline 5w-40. HT/HS of 4.6. It's not an API approved oil though.
_________________________
2014 Mazda 3 S GT AT - Castrol 0w20/dealer oil
2015 Mazda 3i SV 6spd MT - Mobil 1 EP 0w20

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#1008013 - 10/12/07 10:42 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: buster]
Lonnie Offline


Registered: 10/17/06
Posts: 2304
Loc: Los Angles, CA
If you use LubroMoly would you get some uoa's and post them. No one knows much about the oil.

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#1008014 - 10/12/07 08:19 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: Lonnie]
ssj4 Offline


Registered: 03/24/06
Posts: 316
Loc: MD


Edited by ssj4 (10/12/07 08:20 PM)
_________________________
[image]http://img365.imageshack.us/img365/2539/untitled17rm.jpg[/image]

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#1008015 - 10/12/07 10:02 PM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: ssj4]
StoicDude Offline


Registered: 12/30/05
Posts: 210
Loc: Reno, NV
After reading this, I am kind of glad I have a timing belt instead of the timing chain. hahah

I was kind of getting a bit upset about the timing belt and was seriously thinking about a car with a timing chain as my next car. I knew the tensioners on the chains were susceptible (from my motorcycle experience) so I guess the belts are not that bad.

Replacing the belt is certainly a pain, but I am sure not as much a pain as replacing a chain.

LubroMoly is a great oil and I would certainly think about trying it, but I am sticking with Mobil 1 till my stash is out.

RLI seems to be kicking some butt though.

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#1008016 - 10/16/07 07:11 AM Re: Audi S4 4.2 V8 and Approved Audi/VW Oil [Re: StoicDude]
itb76 Offline


Registered: 09/24/07
Posts: 28
Loc: Whitehall, MI
It's not the chain that's so difficult, it's everything that goes wrong when pistons hit valves...

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