Installed oil pressure gauge -- sludge problem

Arthur Marks aamarks at
Sat Jul 23 20:25:18 EDT 2005

Anyone tired of this yet? I know I am. 

1300 miles since the oil change and now my pressure won't get above 30 psi (2 bar). I guess the filter is getting clogged.

Sludgy piece o' sheet: B6 A4 1.8T Q w/ 41,000 miles


  ----- Original Message ----- 
  From: Arthur Marks 
  To: quattro at 
  Sent: Tuesday, July 19, 2005 8:04 PM
  Subject: Re: Installing oil pressure gauge -- sludge problem

  Readings I got on the first test drive:
  20 psi @ idle; 45 psi @ 2000 rpm 
  (Bentley CD says 19 psi @ idle; 50-65 psi @ 2000 rpm). 
  It gets to about 70 psi during hard acceleration.

  I'm thinking the 45 is close enough. Anything to worry about? -- This car had its oil pump replaced at 25k miles and has had oil light warnings since. I'm thinking that now with the proper oil, filter and interval specs the sludge problem has been reduced to one where the sludge is gradually being cleaned up and is clogging the filter. The dealer has my next oil change interval at 2000 miles.


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