Stupid Question - What Motor Oil are you using? And where do you get it?

[BLITZEN]

So, believe it or not, I searched and couldn't find anything in regards to my questions....

1. What Motor Oil are you putting in your RS6?
2. Where are you buying it?

I ask 'cause tonight I went to Pep Boys, O'Reilly, AutoZone and Walmart trying to find 5W-40 for a gas engine (as my manual directed me to buy). I found ZERO options. All 5W-40's I found were for turbo diesels.

I need help right away as my car is low and I don't want to drive it at all while low on oil. Thanks in advance!!

[kilian tuning]

It has to be spec 505.01 , often oil for dieselengines.
Im using motul xclean 8100 5w40

[Turbowned]

Pennzoil Platinum, Castrol, Mobil1 5W40 synthetic euro formula. If you're in a pinch use Rotella 5W40.

[BLITZEN]

Pennzoil Platinum, Castrol, Mobil1 5W40 synthetic euro formula. If you're in a pinch use Rotella 5W40.

Great. Now where do you find any of those?

[AndyRS6]

Audi and VW dealer will sell you Castrol edge 5w40



Andriy

[hahnmgh63]

Redline Euro-series 5w-40. HTHS 4.3, somebody find me an oil with a higher HTHS in that weight?
Castrol Edge 5w-40 3.7
Mobil 1 5w-40 3.7
17864
This VAG bulletin is not all inclusive as it is a couple years old but there is some info in it.

Good info here: http://www.oilspecifications.org/articles/vw_motor_oil_specifications_explained.php

[RS Sick]

BND quantum blue.

BNDautomotive.com, worth the week and 1/2 wait.

[BLITZEN]

Audi and VW dealer will sell you Castrol edge 5w40


Thank you. Situation resolved! 😎

[Cmnair]

BND quantum blue.

BNDautomotive.com, worth the week and 1/2 wait.

+2 just call Brian

[PCMacDr]

+2 just call Brian

I 3rd this
Way to go

[s8prtotype]

Amsoil 5w-40 Full Saps for my ride, and they're 5 minutes away from me :)

HTHS of 3.7 with the goods added.

[lswing]

Many good oils listed, been running with the Amsoil also, good numbers.

Speaking of oil, always reminds me of what a great engine we have in this car. Change regularly, use quality oil, the core engine seems to have excellent performance and limited wear even from the 200k+ mile examples that are out there.

[Aronis]

yes, we had a good look at internals on mine at 140,000 miles, and wear to speak of! I was amazed.

Mike

[EINHORN]

bnd + trans fluid

[Kgnast]

BND Quantum Blue oil, Trans fluid too. So I 4th or 5th that motion. I also run the ACES IV which the car/tune seems to love. Brian knows his stuff.... certainly give him an email give him a ring.

[fukinavit]

im on the Redline euro 5w40 train, local to me and reasonable price with specs hard to beat.

i used to run BND for a while but way too expensive and not a year round oil (especially up here) that stuff is gross in the winter.

[G2]

Amsoil 5/50 Signature Series (AMR) since last spring. 5/40 Euro Classic (EFM) last 5 years prior. Partly because it's not the low SAPS 505.01 OE spec. Even if the oil was free I simply won't run a stripped down OE spec oil in a 15year old tuned engine. Of course not all OE oils are equally poor. But they are simply regulated to PPM levels. They can do all they want with the base stock oil but that interferes with the pricepoint in the big box retailers. If it meets spec, they'll ship it. Legally unencumbered as well.
Interestingly enough Amsoil is the only company I've seen the has a written warranty policy. It's actually fair, and takes responsibility.

At this point we're trying to protect the engine. Not the emission parts. OE oil is specifically designed for the cat. converters for 8yrs/80K miles (10/100K?). What is the engine warranty? About half of this - how interesting.

Seen a lot of oil come out more than a few RS6's, including some of the brands posted above.

Only other oil I would mostly trust is Redline. Have used most of the common Eurotrash lubes like LiquiMoly, Motul, Pentosin. Results vary- nothing bad but not what I'll run for 5K miles. All the Euro OE spec oils are stripped down. A diesel spec oil is a good substitute, at least in terms of additives - BUT try to get an older spec. It will have better HTHS to keep those cylinder walls nice and smooth. I need to study up on the latest 5/40 diesel oils. Have a VW V10 diesel to care for now. Poor thing had 5/30 OE in it. Bit thirsty at 14.5qts service fill. (17-19qts total?). BTW a RS6 takes almost 11 qts if dry. That's 2-3 qts of used oil getting mixed in every time. Change it often to keep the average contamination down. UOA is cheap now.

After not getting bitten last 20yrs and the hundreds of other cars I've changed to Amsoil it's an easy choice. More than a few cars I certainly can't afford. After seeing what comes out one thinks that anything would be better...

The 5w40 Euro Classic is a great oil. Very affordable, even at full retail. The fancy 5w50 is definitely better, far beyond OE spec oil. If you're tracking the car or running hot in the south, it's the oil. (Originally designed for the Nissan GTR)

As most know I purvey this fine snake oil (see sig). Some nice discounts are available.

Mr. Snap-On truck just pulled up so gotta run. Cheers everyone.

[boca rat]

Thx to all for responding. Need to get this ordered as getting the oil change done while away next week. So Pentosin not recommended? Planning on reaching out to BND for next time

Thx again!

[boca rat]

Replied to wrong thread.....duh. sorry


Thx to all for responding. Need to get this ordered as getting the oil change done while away next week. So Pentosin not recommended? Planning on reaching out to BND for next time

Thx again!

[G2]

Pentosin is about the same as other OEM European made oils. Good, but leaves a lot on the table due to OE spec limitations. Pentosin is factory fill in most power steering systems - RS6 included.

If Amsoil is of interest there's free shipping at www.oilpro.myamsoil.com First choice in my car is their 5/50 Signature Series (AMR), or 5/40 European (EFM). Also for the A4 2.0T, now with almost 190,000 miles.

Excellent oil filters as well. You're ears will notice the difference...

[G2]

im on the Redline euro 5w40 train, local to me and reasonable price with specs hard to beat.

i used to run BND for a while but way too expensive and not a year round oil (especially up here) that stuff is gross in the winter.

Gross, as in thick, or?

Was on the Redline bandwagon for about 10 years prior to the 20 year run with Amsoil so far. Admittedly it was out of desperation being in Wisconsin where it's made. It immediately proved itself in sub zero temps. Based on gleaning tech specs and white paper report, was impressed with their consistent performance across the board compared to other key players- engine, trans/ATF and gear oils. Best oil filter for the RS6 I've found so far as well. Completes the package of protection as it were.

[hahnmgh63]

Redline is made in California of all places. Redline is also a Group IV oil which most synthetics are Group II or III. I also challenge you to check the websites of all the oil manufacturers to find a higher HTHS oil which is one of the first restrictions on VAG 505.01 which most other oils only meet the minimum and Redline's HTHS exceeds by a margin.

[boca rat]

Can one of you add to your comments about "best oil filter"? In what way and how do you know?

Thx!

[G2]

Can one of you add to your comments about "best oil filter"? In what way and how do you know?

Thx!

The word "excellent" was certainly used.

I like Amsoil filters because they reduce the time required to build oil pressure into the heads. This helps reduce top end noise on startup. I further like the filters because they are synthetic media which filters far better than paper media types. The micron rating is lower and the percentage of debris caught is nearly 100%. They also last longer with more consistent performance.

After doing countless oil services on all sorts of European cars, it always makes me cringe to see a paper element become hard, brittle, usually caving in from the excessive resistance. At a certain point the oil filter can cause the over pressure valve to open. This allows unfiltered oil back into the engine.

Having changed a lot of oil on RS6's (besides just mine), simply using an Amsoil filter always helps to reduce startup noises. Of course I'm using Amsoil engine oil. Not many companies are quite so OCD to make their own filters and oil. Pretty cool in my book.

[G2]

Interesting read: https://blog.amsoil.com/how-much-synthetic-is-in-my-oil/

I lived about an hour from where Redline is made. Every private or amateur racecar at Sears Point Raceway ran it. Could almost run a oil line to the track. I joined in.

HTHS is crucial but not the only metric for choosing an oil. There's about 10 performance benchmark tests. Some are mandated, some elective in testing.

For fun looked at Redline and Amsoil the other day for their respective OE 505.01 spec 5/40 European lubes. Near identical to the untrained eye. Oddly Redline has a much higher (11%) NOACK burnoff. It also has slightly less viscosity at the 40wt rating in Kinematic terms which is far more accurate. I recall HTHS being the same/close at 3.8, including VI @ 168 (extremely high). TBN is limited to about 8. This is just slightly above 7pH being neutral. If splitting hairs Amsoil has the advantage.

I'm not sure Redline exceeds the HTHS by any significant margin, other than a margin.

Far as the 505.01 spec goes I avoid it due to reduced SAPS PPM's and reduced TBN. TBN really plays into the final acidity levels. I've seen UOA's where TBN was flagged. Most OE specs oils become so acidic it attacks engine seals. Helps cause oil leaks. It can even eat away at engine bearings. No fun. I prefer "unregulated" oils allowing higher TBN levels. Even Amsoil mid grade 5/40 Euro is at 10. The 5/50 is pushing 13. I challenge anyone to find it any higher- if we're doing the challenge thing.

We tend to get so wound up on operational/running specs it's easy to forget most engine wear occurs during startup. High SAPS/Zinc PPM's are crucial no matter the oil Group type. End of the day protecting the engine is first priority in my book.

[G2]

Redline is made in California of all places. Redline is also a Group IV oil which most synthetics are Group II or III. I also challenge you to check the websites of all the oil manufacturers to find a higher HTHS oil which is one of the first restrictions on VAG 505.01 which most other oils only meet the minimum and Redline's HTHS exceeds by a margin.

https://www.amsoil.com/lit/databulletins/g2880.pdf

Have a look at the 5/50. That'll wet anyone's whistle for off the chart specs.

The V10 gets it next - 14 qts worth.

[hahnmgh63]

I'll throw this out from Redlines data sheets, as you can see I am a big Redline fan. They have two 5w-40 oils, the regular and what they call the Euro series. Pretty close specs but probably slightly different due to manufacturer certifications, both meet VAG 505.01 though, and the NOACK on both lists at 6%. The regular has a HTHS of 4.4 and the Euro is listed at 4.3. Once again not sure of the formulation differences but I have been using the regular for 20yrs and don't see the need to go to the Euro series.

[Cmnair]

i used to run BND for a while but way too expensive and not a year round oil (especially up here) that stuff is gross in the winter.

Been running BND in my car here in NY and have had no issues. Not sure what you mean by "gross". Perhaps reach out to Brian?

[fukinavit]

Been running BND in my car here in NY and have had no issues. Not sure what you mean by "gross". Perhaps reach out to Brian?

Basically if you run your car below zero (c) use something else.
I got caught when winter came early, my car was sat at work for a few days when I returned to pick it up. Was about - 5c and engine clattered away and oil pressure light remained on for about 10 seconds.
I did an oil change in my garage a few days later and the oil drained like tar, all congealed and separated. My garage heater had quit so again it was around zero when I did this.

For an advertised 8w oil it's way too thick for me. Probably okay for warmer climates but certainly not year round use for me.

I went to redline 5w40 and she likes it alot better, alot cheaper, good start up and no noises = win win

[Cmnair]

Hmmm interesting ....never had a single issue in the winter in NY