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Thread: Oil

  1. #1
    Registered User gregoryindiana's Avatar
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    Oil

    Been a while since I was on the forum.

    My stash of RS6 specific 505.01 oil has finally run out. Anyone want to share what they're using, as I can't find any oils that specifically say they pass that standard. Thanks for your input.
    2003 RS6, Mugello/Silver, MTM Stage 1 ECM, and TCM mod, Abt 19 inch wheels for summer, stock 18s for winter, RS6+ Pedals INSTALLED! 2Bennett coilover system, 2Bennett front brakes; DRC gone!

  2. #2
    Registered User hahnmgh63's Avatar
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    I've been using Redline 5w-40 for 15yrs in my RS6. Not the Euro formula one but the Regular. It meets 505.01 and has the highest (HTHS) rating of any 5w-40 oil. I have started using BND 7.5w40 in my RS5 and S5 recently. I'll have to see how the next Blackstone reports show. I know D.Hall had a great Blackstone oil report on the BND he was using in his RS6.
    I do believe in paying a little more for a better oil than just plain off the shelf Castrol or Mobil1. Their reports usually show they are completely finished by 5k miles. I do keep most of my cars a long time. I have 8 vehicles and a fairly good size shop.
    Last edited by hahnmgh63; April 11th, 2022 at 06:25.
    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  3. #3
    Registered User gregoryindiana's Avatar
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    Thumbs up Perfect answer

    Quote Originally Posted by hahnmgh63 View Post
    I've been using Redline 5w-40 for 15yrs in my RS6. Not the Euro formula one but the Regular. It meets 505.01 and has the highest (HTHS) rating of any 5w-40 oil. I have started using BND 7.5w40 in my RS5 and S5 recently. I'll have to see how the next Blackstone reports show. I know D.Hall had a great Blackstone oil report on the BND he was using in his RS6.
    I do believe in paying a little more for a better oil than just plain off the shelf Castrol or Mobil1. There reports usually show they are completely finished by 5k miles. I do keep most of my cars a long time. I have 8 vehicles and a fairly good size shop.
    Thanks! I'll order some Redline now. I have an '88 928, a '90 V8Quattro, along with the RS6, so I keep cars a while also. Somewhere I am sure 4 cars I previously owned are also still on the road. The "baby" of my car family is a '16 Cayman GT4; hard to believe that it's almost 6 years old now. Time certainly flies!!
    2003 RS6, Mugello/Silver, MTM Stage 1 ECM, and TCM mod, Abt 19 inch wheels for summer, stock 18s for winter, RS6+ Pedals INSTALLED! 2Bennett coilover system, 2Bennett front brakes; DRC gone!

  4. #4
    Registered User hahnmgh63's Avatar
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    I love that GT4. My cars stretch from '74 911 to a '13 RS5 with a mostly Germany mix in between except for an old '84 F250 and ex-Military HMMWV, 24volt electrical system and all.
    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  5. #5
    Registered User IchBautAuto's Avatar
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    Liqui Moly’s Top Tec 4100 5W-40 VW 505 01 approval. Another option if you need one. While I do use $$$ oil for severe duty, I haven't found any issues with this over 5 or so years of use in two classic RS cars that I still own.
    2003 Sportec RS6, 2001 Revo RS4, 2000 A4 GP quattro, 1963 Unimog 404 TLF8

  6. #6
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    Like D Hall, been using BND since I got the car a little more than 40k ago and using Brian’s transmission fluid and filter since the TC was replaced with an ACE.

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    Last time it was on sale at NAPA for $5.

  8. #8
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    Quote Originally Posted by EINHORN View Post
    Like D Hall, been using BND since I got the car a little more than 40k ago and using Brian’s transmission fluid and filter since the TC was replaced with an ACE.
    What is 'Brian's transmission fluid', and filter for that matter? I have an ACE rebulid in my ride as well, just curious what this is, Google didn't uncover anything other than some local auto shops.

  9. #9
    Registered User hahnmgh63's Avatar
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    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  10. #10
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    I have a friend who has been an Audi Porsche mechanic since, well, forever. He used to drive up to my house in a 100LS. He is a crew chief for a couple of Porsche Cup cars, and regularly exchanges blocks and heads with Porsche directly. On more than one occasion, Porsche asked him what oil he was using. LubroMoly 5W-40. Porsche replied keep using it. "Your engines are running perfectly".
    Last edited by NSU RS6; May 3rd, 2022 at 19:50. Reason: correction
    Daytona/Ebony/Carbon/SEE/RNS-E/19X9 Speedline "Peelers"

  11. #11
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    Quote Originally Posted by NSU RS6 View Post
    I have a friend who has been an Audi Porsche mechanic since, well, forever. He used to drive up to my house in a 100LS. He is a crew chief for a couple of Porsche Cup cars, and regularly exchanges blocks and heads with Porsche directly. On more than one occasion, Porsche asked him what oil he was using. LubroMoly 5W-40. Porsche replied keep using it. "Your engines are running perfectly".
    LubroMoly additive or LiquiMoly oil?

    I've been running the LiquiMoly Molygen and the top end looked clean when I had the valve covers off.

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