Re: Castrol Syntec Problem(?)

[Robert F Phillips <r3rfp@dax.cc.uakron.edu>]

On Wed, 18 Jan 1995 mma@RT66.com wrote:

> 
> I've noticed that my 5000CSQ is leaking more oil than I'm happy with. It has
> just 70K miles and here's the interesting point - I'm using synthetic and I'd
> started with Mobil 1 - for the last 4/5 changes (at every 5K miles) I'd switched
> to Castrol Syntec (mostly because it was easy to purchase at the local Price - 
> Costco). It is since the switch that the leaking has started...Coincidence??
> 
> Meanwhile in European Car -
> There was a blurb a few months ago about Synthoil, where a reader wrote a letter
> complaining that the 50K miles with only filter changes was BS (I'd have to
> agree that 50K with a turbo would make me very nervous). The reply was 'we've
> used this on several cars with great results - no leaks, no wear at teardown...
> 
> The 'no leaks' statement got me thinking about what I was seeing w/Syntec.
> 
> Comments?
> 
> 
> Mark Aaldering
> mma@rt66.com
 I have been running Syntec in my 87 4000S 4-cyl for about 2 years and 
had very good results.  The engine has over 130K miles on it and uses NO 
oil between changes.  The intervals are around 3000 miles, but sometimes 
run longer due to laziness.  I autocross the car 3-4 times a month during 
the summer and tend to bounce off the rev limiter during a hard run.  If 
it was going to use oil, this would be the time.  It also serves as my 
daily driver.  If it's the oil, it must be pretty weird...

I too am skeptical about the alleged 50k Synthoil.  I would rather spend 
a few bucks changing oil than risk it.
			---Bob