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#3354279 - 04/26/14 10:48 PM Oil For An Early 80's Non-Turbo Diesel Audi 5000
Red91 Offline


Registered: 12/09/13
Posts: 890
Loc: Alabama, United States
What would be recommended for this car with this engine.
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QSUD 5W-30, STP Extended Life S10246XL Filter

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#3354288 - 04/26/14 11:04 PM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
GutsyGecko Offline


Registered: 08/16/12
Posts: 426
Loc: Youngstown, OH
I would use any 15w-40 diesel oil since its non-turbo and synthetic wouldn't be fully utilized.

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#3354294 - 04/26/14 11:10 PM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
Red91 Offline


Registered: 12/09/13
Posts: 890
Loc: Alabama, United States
I was thinking 15W-40 or HD 30. Probably Delo.
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#3354300 - 04/26/14 11:17 PM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
GutsyGecko Offline


Registered: 08/16/12
Posts: 426
Loc: Youngstown, OH
I would use the 15w-40. Thicker at temp and better cold pumpability.

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#3354383 - 04/27/14 06:11 AM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: GutsyGecko]
EddieCairns Offline


Registered: 09/30/12
Posts: 145
Loc: Scotland
Originally Posted By: GutsyGecko
I would use any 15w-40 diesel oil since its non-turbo and synthetic wouldn't be fully utilized.

GutsyGecko

Can you please advise why a synthetic wouldn't be fully utilised in this engine.

eddie

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#3355494 - 04/28/14 10:33 AM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
bullwinkle Offline


Registered: 10/09/04
Posts: 5306
Loc: Cincinnati, OH, USA
A synthetic would actually be better for wintertime cold starts (not that the OP would need it in AL), but you'll be topping off a lot. I used M1 TDT in my 300D when I first got it to loosen rings, but it used a lot when I did it.
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#3355835 - 04/28/14 04:56 PM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
Garak Offline


Registered: 12/05/09
Posts: 16910
Loc: Regina, Saskatchewan, Canada
Any 15w-40 will be fine year round for this vehicle in your climate, and likely was the most widely recommended grade according to the manual.

This is the 1989-1991 Audi viscosity chart, for reference:

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Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Wix 51358
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3355980 - 04/28/14 06:43 PM Re: Oil For An Early 80's Non-Turbo Diesel Audi 5000 [Re: Red91]
michaelluscher Online   content


Registered: 10/07/12
Posts: 2103
Loc: Tri States Little Italy
Blue bottle Rotella 5w-40 or Silver bottle Rotella T5 10w-30
I don't think 15w-40 is really warranted unless it decides to use either of these.
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