On Sun, 08 Feb 2009 19:54:56 -0500, wrote:

On Sun, 08 Feb 2009 15:45:57 -0700, Ashton Crusher
wrote:

On Sun, 08 Feb 2009 01:02:39 -0500, wrote:

On Sat, 7 Feb 2009 18:12:52 -0500, "C & E"
wrote:


wrote in message
m...
On Sat, 7 Feb 2009 10:12:23 -0800 (PST), "
wrote:

On Feb 7, 12:18?pm, jasmin wrote: Years
ago when our engine oil got very dirty, we would drain out the dirty
oil, then add two quarts of kerosene and 2 quarts of clean oil and run
the engine for 15 minutes. Then drain out the dirty mixture and then
add new fresh oil. The oil would then remain clean for the longest
time. I have one hydraulic valve that must be hanging up and want to
try this to see if I can free it up. The tappet is very noisey when
the engine is cold but then quiets when it warms up. The engine is a
V6 Buick Century. Anyone have recommendations or agree with this old
practice???

good chance that will ruin the engine...

change oil, add slick 50 its a super lubricant, and may help.

Don't waste your money on snake oil.

oil additives are worlds better than years ago, and engines dont get
as dirty inside, unless you go way too long between oil changes.

but no oil cleaner or additive will fix a worn out part like a worn
out cam lobe......

best wishes

If the lifter is sticky you can buy Rislone or Marvel Mystery oil, or
you can use kerosene.
If the cam lobe is worn it won't fix it, but usually a worn lobe does
NOT quiet down when it warms up.

What makes Slick 50 'snake oil' and Marvel Mystery Oil and Rislone not? Not
a flame. I just want to know.
TIA,
Chuck

What it claims to do. Slick 50 is a Teflon suspension which claims to
coat/impregnate the metal parts with a friction reducer. The
manufacturer of Teflon, DuPont, says their product MUST NOT be used in
an engine. I've tried the stuff and found no increase in fuel mileage
over the duration of the test and only minor reduction in operating
temperatures. A total waste of money. Their FUEL SYSTEM product
Synchron,works about as well as MMO when used in the fuel system.
However, they call it an "8,000 km" fuel treetment, making it sound
like there is some residual action. All it really means is if you use
it every 8000 km you will keep engine combustion chamber deposits in
check.
Rislone and MMO are simply solvents/detergents/oxidation inhibitors to
reduce the viscosity of the oil when cold,disolve gums and carbon
deposits, and help prevent further deposit formation. When used as
directed they do EXACTLY what they claim to do. By removing deposits
that cause rings to stick they will reduce oil consumption and improve
compression if sticky rings are the problem. By removing gum from
lifters they will quiet noisy engines if sticky/dirty lifters are the
problem. By removing deposits from oil galeries, rocker shafts, etc
they will improve lubrication to the valve train, reducing wear and
noise - if reduced oil flow due to deposit buildup is the problem.

Now, the thing is, with extended drain intervals on hot-running highly
stressed engines deposit buildup IS a known and well documented
problem - and removing the offending deposits WILL improve the
performance, sound, and life of the engine. These are 2 products that
when used as directed WILL do what they claim.
I've used both over 40 years with very good results. MMO added to an
aircraft engine that had sat for a few years and had
compression/leakdown test results that indicated the engine should NOT
fly came back up to PERFECT readings within less than 20 minutes of
ground run-up.

How do you know it wouldn't have come back to perfect readings without
the MMO if you had simply changed the oil and run it for 20 minutes?


Because we tried it - a couple times. Owner of the engine was just
about ready to tear it down for a rebuild when I suggested the MMO. I
had a bottle in the truck, and 20 minutes later, it was fixed.

Thanks for the reply. So often people don't have that kind of basis
for their claims and then they get really mad because the question is
asked.


Added to the fuel it also helps remove/reduce lead buildup on valve
stems of engines like the older Continental 85 HP that were designed
to run on 87 octane avgas (which had less lead than today's LL100
which is about the only "avgas" you can buy most places today)which
causes "morning sickness" - or sticking valves when the engine is
first started.