A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

audi junkie - auto rx question

Thread Tools
 
Search this Thread
 
Old 12-24-2008, 03:57 PM
  #1  
AudiWorld Super User
Thread Starter
 
pac1085's Avatar
 
Join Date: Feb 2005
Posts: 5,028
Likes: 0
Received 0 Likes on 0 Posts
Default audi junkie - auto rx question

I was going to start the AutoRX sludge treatment on my 30v (w/ penzoil 10w40 conventional), but it's got a broken thermostat at the moment and the oil doesn't always get up to full temp. I assume AutoRX probably needs the heat to work properly? It's going to be a few weeks before I can change the thermostat, but I need to change the oil now - should I wait on the ARX or throw it in now? I've only got 3 bottles so need to use it right.
Old 12-24-2008, 06:33 PM
  #2  
AudiWorld Super User
 
bassed-ndzmorezone5's Avatar
 
Join Date: Jun 2004
Posts: 12,981
Likes: 0
Received 0 Likes on 0 Posts
Default You're most likely still getting up to temp Phil no? It's just the sensor that's off....

you can do it now or later (doesn't matter), when you replace the sensor I would think.
Old 12-24-2008, 06:48 PM
  #3  
AudiWorld Super User
Thread Starter
 
pac1085's Avatar
 
Join Date: Feb 2005
Posts: 5,028
Likes: 0
Received 0 Likes on 0 Posts
Default i think the thermostat is broken (stuck open), not the temp sensor

car heats up fine when i block off the radiator w/ cardboard as a test, so it's gotta be a broken thermostat.

and here I am thinking changing a t-stat on an AEB is bad...you basically need to remove the frigging timing belt on the ATQ to replace it!
Old 12-24-2008, 06:51 PM
  #4  
AudiWorld Super User
 
Audi Junkie's Avatar
 
Join Date: Nov 2001
Posts: 19,237
Received 9 Likes on 8 Posts
Default Yes, heat is important. I personally run Auto-Rx as long as possible. 5k, at least.

I assume you put in a whole bottle, maybe more? The whole ARX application process is overblown. Add 1 bottle to fresh oil is all it should say.

If you want to run longer and hotter, just wait for a while to do that, it certianly can't hurt. I'd do the rinse phase and then just add a 4-6 oz portion to your next few oil changes. Time and heat are key, no need to rush.
Old 12-24-2008, 06:54 PM
  #5  
AudiWorld Super User
Thread Starter
 
pac1085's Avatar
 
Join Date: Feb 2005
Posts: 5,028
Likes: 0
Received 0 Likes on 0 Posts
Default Thanks, I didn't do anything yet.

Not really sure of the condition of the motor as I haven't pulled a valve cover, but it has 92k miles and it looks a little dark (but not terrible) through what little I can see in the oil fill area.

I was going to go with the "sludge treatment" as documented on the auto-rx site.

I have 10quarts Penzoil 10w40 and 3 brand new bottles of AutoRX, haven't touched any of it yet.
Old 12-24-2008, 06:59 PM
  #6  
AudiWorld Super User
 
Audi Junkie's Avatar
 
Join Date: Nov 2001
Posts: 19,237
Received 9 Likes on 8 Posts
Default Oh, ok. I thought you were just changing it out.

1 1/2 bottle cleaning, rinse and then three 1/2 bottle "maintenance" doses would be extremely effective. The maintenance doses can be with synth oil, no problem....another overly tedious aspect of the product application.
Old 12-24-2008, 07:01 PM
  #7  
AudiWorld Super User
Thread Starter
 
pac1085's Avatar
 
Join Date: Feb 2005
Posts: 5,028
Likes: 0
Received 0 Likes on 0 Posts
Default How many miles on the 1 1/2 bottle cleaning?

2500 like they say with a filter change at 1250, or for a longer period(5k) like you mentioned?
Old 12-24-2008, 07:29 PM
  #8  
AudiWorld Super User
 
bassed-ndzmorezone5's Avatar
 
Join Date: Jun 2004
Posts: 12,981
Likes: 0
Received 0 Likes on 0 Posts
Default

Jesus christ, if it's that difficult to get to the t-stat I can see why you'd wait a bit longer.
Old 12-25-2008, 08:20 AM
  #9  
AudiWorld Super User
 
Audi Junkie's Avatar
 
Join Date: Nov 2001
Posts: 19,237
Received 9 Likes on 8 Posts
Default Frank modified the instructions recently. I say forget the filter change and run a full 5k.

I ran ARX in my one 30v and cut open the used filters, nada. So I would not think a big V6 filter would get clogged- at all. As far as running 5k, just do it. I think Frank has gone to longer applications, maybe even full ocis. He has certinaly talked about it. Also, he is catering to a lot of interests, a lot of his customers want FAST results, etc. Everyone who has been around at Bob's a long time agrees, just use ARX like an additive. Frank did some tests where a maintenance dose helped increase oil service life, oxidization and wear numbers were very low on extended use....why not just apply that logic to a longer cleaning treatment, etc.
Old 12-25-2008, 09:21 AM
  #10  
AudiWorld Super User
 
Audi Junkie's Avatar
 
Join Date: Nov 2001
Posts: 19,237
Received 9 Likes on 8 Posts
Default PS- tell us how smooth the Pennzoil 10w-40 + ARX combo is. I'm pretty impressed by PZ Yellow Bottle.

in winter, you can run 5w-30 in that engine, but I dunno where you live. Thinner oil for ARX is recommended, supposedly flow+solvency is better with it. I would not sweat it, 10w-40 is good down to -15f or so. Still, you will probally use the 10w-40 later anyway if you bought some lighter winter oil now. fwiw, PepBoys has the $9.99 Special, 5q Formula Shell + Proline filter (Puralator) I got like three so far, for other people's cars, still...a hit.


Quick Reply: audi junkie - auto rx question



All times are GMT -8. The time now is 07:05 AM.