[DML] Re: changing to synthetic oil

["Harold McElraft" <hmcelraft@xxxxxxx>]

I don't know that I buy the congealed oil stuff, but I did 
experience what I believed to be some stuck piston rings in a D that 
had been sitting for over five years. My concern was getting oil 
flow open to the rings and dissolving any sludge, etc. My search 
turned up a product made in Germany called LM Lubro Moly Oil Sludge 
Remover. I found it at a foreign auto parts store in Houston. I have 
not seen it at the usual places like NAPA, etal. The parts manager 
had a B28 Volvo and said he had used it in his engine and thought it 
was great stuff. So I decided to try it.

This stuff is to be used before an oil change for about 200 miles 
and drained hot. I did that. The oil I drained was only a 1000 miles 
old and was it black. After that, no more noisy pistons and the oil 
stayed clean. That was about 45,000 miles ago. That's the only time 
I have used the sludge remover and it seemed to do the job.

Harold McElraft - 3354



--- In dmcnews@xxxxxxxxxxxxxxx, "captain_hydrogen" 
<captainhydrogen@xxxx> wrote:
> [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, 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@xxxx




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