synthetic vs reg. oil - Page 2 - MBWorld.org Forums

Oct 5, 2004 | 11:13 PM

#26

Audi Junkie

Super Member

Joined: Apr 2004

Posts: 783

Likes: 108

From: PA

E Coupe C207, ML W166, ML W164, Sprinter 1500/144, W111 SB220 Fintail(s), A5 chassis Beetle 5+5

I agree with the above post.

http://theoildrop.server101.com/cgi/...c;f=3;t=001774

Oct 6, 2004 | 01:00 AM

#27

pointman

Thread Starter

MBWorld Fanatic!

Joined: Jun 2003

Posts: 4,705

Likes: 2

From: nj

a car that can't do the throttle reset.

Quote:

Originally Posted by wizkid

Check it out http://neptune.spacebears.com/cars/stories/mobil1.html
But I have $$ in my motor and I don't want to be walking over a cheap oil change.

Eric
www.installuniversity.com

its not a matter of money, or a "cheap oil change", its about what physical properties each has to offer and if there really is some bad qualities to synthetics.

Oct 6, 2004 | 09:59 AM

#28

BoSoxFan

Senior Member

Joined: Jun 2004

Posts: 474

Likes: 0

From: Red Sox Nation (No. Va. chapter)

2004 E500

Quote:

Originally Posted by pa28pilot

This is good advice, but even on the BitOG board, I have some concerns. For example, it's not at all clear to me that there are meaningful data to be had from everyone's posted analysis reports. My experience in the aviation environment suggests that used oil analysis is really only meaningful in the context of trend monitoring within the context of one brand of oil, used in one car, with all tests done by one analysis shop. Change any of those parameters, and meaningful comparisons go out the window.

Cars appear to be different only in that any lab can tell you if you have glycol (antifreeze) in your oil, which is abnormal. Any more precision than that would seem to hinge on the consistency I described above.

I don't presume to have anywhere near the experience or knowledge that some of you other posters have. However, a number of years ago I led a team of analysts who were developing software for the Navy to use in its submarine force to monitor and plan maintenance. They were especially concerned with predicting failures so that maintenance could be performed while in port rather than experiencing a failure while on patrol. Remember that they stayed submerged for 60 days while on patrol. Among other things, they were concerned with the trend and with threshold alert levels. From the trend, engineers could do a projection and compute a probability of failure within a certain time period and schedule a maintenance action. If contaminants or metal particles reached a specified threshhold level, regardless of the trend, they would also schedule an action. Of course, they collected a lot of information in addition to oil analysis in their database which was used for decision-making.