extended mileage oils

[bencoates@yahoo.com (Matt Coates)]

To get the definitive answer on the oil in your car send out a sample to be
analyzed:
http://www.oaitesting.com/

it will tell you if the oil base has degraded and needs to be changed, and also
what is in the oil: metal type, dirt, coolant etc.

There are 3 grades of base stock for synthetic.  Mobil 1 uses the lowest,
amsoil, redline, mobil delvac 1 synthetic, use the highest.  FWIW mobil1 is
toast by 5-6k in my vehicles.  

Some turbo diesel truck guys run a special filter setup that allows them to get
20-30k out of amsoil...

HTH,
Matt
--- Eric L Ellis <onesixv@juno.com> wrote:
> My understanding from Amsoil is that if you choose to extend your
> intervals with their product, you must continue to change the filter
> every 2500 to 3000 miles and top off.  Amsoils claim to fame was an 18
> wheel rig they ran 100,000 miles using this process.  They then took the
> engine apart to check wear and found nothing to indicate 100k was on it.
> 
> I know some guys that run Mobile 1 and do a complete change @ 6k mi.
> intervals w/3k filter changes.  Supposedly, the oil comes out "like new".
> 
> Eric
> "Good, bad...I'm the guy with the gun!"
> http://www.geocities.com/blitzkrieg16v
> AOL IM:  OneSixV
> http://www.geocities.com/onesixv
> 
> On Wed, 10 Jul 2002 16:56:43 -0700 "Larry" <rocco16v@netzero.com> writes:
> > Three thousand miles ago, I installed AMZOIL in my 'roc.  AMZOIL 
> > claims it
> > is a 30,000 mile oil.  The question to you guys (and non-guys) is 
> > this:
> > Do I change this stuff at my usual 3K mile interval, or do I leave 
> > it in the
> > crankcase for 6K? or 9K? 12K?
> > Since I could detect no difference in performance or mileage when I 
> > changed
> > from the previous oil, is the extra $$ for this lubricant even worth 
> > taking
> > the chance of going longer than 3K?  What are your opinions?
> > 
> > Larry  sandiego16v
> > 
> > -------------------------------------------
> > Introducing NetZero Long Distance
> > Unlimited Long Distance only $29.95/ month!
> > Sign Up Today! www.netzerolongdistance.com
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