Dave said:
'DId you do it with the Bilstien ENgine Flush Machine which
pumps heated solvent thru the oil filter spindle, fills up the block oil
passages with the solvent letting it sit for 15 minutes , then
circulates fresh solvent thru at 45 psi while the old solvent comes out
of the Oil Pan and across filters in the Machine which are visible ? Ive
personally witnessed this being done on two of my high mileage vehicles
and i change oil with filter at 3 k. miles using synthetic oil and high
performance oil filter. Its worth it to do about every 40 k miles if its
done with this specific Machine.
Let me guess. After you do this, you get 10% better fuel mileage, your
engine has 20 more HP, it runs quieter, starts better and stops faster.
Did I miss anything?
Matt '
REPLY: You should not be listened to Matt since you come to the table
with an unsupportable preconcieved bias in many instances ; you
denounce this particular Engine Flush procedure without even having
first hand knowledge or personal experience with it. At least go to
their website and come up to speed on the Machine, how it works, its
benefits, et al...instead of offering a conclusion based on personal
bias.
OK, I viewed the web site. I'm now even more convinced this is simply
another way to separate people from their money. The before and after
pictures are particularly telling. There is a lot of stuff remaining in
the after picture. For a real comparison, they should have also showed
a new oil pan and oil pickup (at least that is what I think was in the
picture). Then you could see how much stuff remains. Also, when an
engine is running, it slings oil everywhere. Ever see a high-speed
camera shot inside the crankcase of a running engine? I have and the
oil is flying everywhere. The flush system, from what is shows on the
web site graphic, is running fluid in and letting it drain back to the
crankcase and then suctioning it out. The suggests that most of the
engine is going to be cleaned as the oil only flows back through the oil
passages. It isn't covering the entire inside of the engine the way the
oil is when the engine is running.
In the end, all of this is irrelevant anyway as the sludge has virtually
no effect on the operation of the engine. Even the "data" they show,
was showing improvements that likely aren't even statistically
significant. 1-3% is in the noise level of most measurement techniques.
An engine on a dyno can experience a 1% change in torque from morning
to afternoon must from temperature and humidity changes. To claim that
a 1% difference was due to this flush is simply hogwash.
However, as has been often said "there's one born every minute" so these
folks will probably get lots of business with their scare tactics. I
wonder how cars have operated so well for 100 years without this magic
machine?
Matt