Re: [DML] changing to synthetic oil

["Cecil Longwisch" <dmc1982@xxxxxxx>]

You will definitely have sludge in your oil pan and possibly in the oil passages. There are arguments both ways if you want to stir it up or leave it alone.
If you are going to switch to a highly detergent oil such as a synthetic I think you want to clean it up first. And with the synthetic it will not be back.

The most important thing is once you stir it up do not cheap out to get it safely out. After the flush process I would put a new filter and regular light weight (10W30) oil in it and run or drive it for an hour and then drain it and put the good stuff in.

You will be surprised at how dirty the oil will be.

Cecil Longwisch
#10663

  ----- Original Message ----- 
  From: captain_hydrogen<mailto:captainhydrogen@xxxxxxx> 
  To: dmcnews@xxxxxxxxxxxxxxx<mailto:dmcnews@xxxxxxxxxxxxxxx> 
  Sent: Monday, September 13, 2004 3:43 PM
  Subject: [DML] changing to synthetic oil


  [MODERATOR'S NOTE: The debate on preferred motor oil comes up often and this will not be one of those debates. This is not a question about what the best motor oil is and responses of that form will be dumped as being repetitive with the massive archive we have on oil.]

  I will be changing to Mobil 1 Synthetic next weekend and would like 
  some opinions or factual information concerning something the guy at 
  the auto store said.  I told him that prior to buying my DeLorean, it 
  sat dormant for a few years with all fluids present.  He said that 
  over time, sediment can gather in the bottom of the oil pan and other 
  places and when changing over to synthetic oil, the smaller molecules 
  of the synthetic medium can loosen the old sediment and 
  cause "chunks" of congealed oil to clog the passage ways.  He 
  suggested that I use a motor flush prior to changing oil and pointed 
  me to the motor flush section.  He said that anyone will work, but 
  pointed to one he had experience with, "Fast Motor Flush, 5-Minute 
  Engine Cleaner, by CRC (www.crcindustries.com<http://www.crcindustries.com/>, part #05336)".  I 
  bought two cans because of the amount of oil used in the engine.  If 
  I need it, I have it, if I don't need it, I can return it.

  The question is, do I need it, or did I buy two cans of "snake oil"?  
  Is what the auto store guy said true?  Since I will be changing over 
  to synthetic oil, is it possible that not using a motor flush prior 
  to the change, can damage my engine?

  Looking for answers and clarity.

  Thank you,
  Ben Ferguson
  Arizona DeLorean Club, VIN 10365
  American Hydrogen Association
  captainhydrogen@xxxxxxx<mailto:captainhydrogen@xxxxxxx>




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