Will switching from Synthetic to Dyno oil harm my engine?

Crappy Tire still sells Amsoil. Danny knows this, because he lives up here.

When you buy Amsoil there, the cashier rings it up, tells you the total,
you pay and leave. That's it. The cashier doesn't pressure you to join any
clubs or become an Amsoil dealer or any other such crapola.

Danny-boy may be confusing Amsoil with Amway. They're different, you know.

 

All Kias AFAIK. My #2 son has had 2 (well, his fiance has) and they both
required 3K mile oil changes to maintain the 100K warranty. 33 oil changes,
huh?

Mike

 

Well I suppose that is one way to finance a long warranty LOL.
Any advances?

Huw

 

ROFLMAO! Well, I just read what I wrote last night (it was late) and it
didn't come out exactly as I had intended!!!

 

Of course. And I'm not asked to become a part of it simply because I'm an
end user. And that, punkin, is the difference.

 

Now we're getting somewhere. Those are legitimate complaints, as long as you
feel they are. But the invitation to Google group posts would get me the
wackos.

I am not going to ask about references for the "dubious" / "incorrect"
assertions, because I really am not *that* interested. I expect to stick
with Mobil 1, because I'm using it now (kind of a random selection) so it
doesn't make any real difference to me.

I have also been displeased with Amway (are they related?), since my wife
became involved with it for a few months. The hype was annoying, but the
product quality for the items I tried was awful - except the detergents were
okay. I'm sure not going to count it against you for resenting the
proselytizing.

Mike

 

I won't let my kid participate in the school's fund-raising drives,
where they ask KIDS to sell door-to-door to raise money. Jeezez. If
you're that hard-up, here's $50.

Of course, it's rather ironic the "wealthiest" country in the world
can't properly-fund it's schools...

 

Actually, VW has specifically recommended "synthetic" for its diesel
engines since 1999 in the US, using fixed oil change intervals. Also,
the 5W-40 grade recommendation for all recent VW engines in the US
is a roundabout way of saying "use synthetic", but lots of owners and
dealers use conventional oil (of some other grade).

 

Your definition of pyramid is very convienent.

 

SNIP

Wouldn't an oil analysis by an independant lab settle any dispute?

JP

 

SNIP

SNIP

NO!

 

Must be part of the modern "safety" paranoia, but when my kid is sent home
with school fund-raising junk, it comes with a circular specifically
requesting the she NOT go door-to-door selling the stuff, but to cadge from
friends, family and relatives instead.

 

"Michael Pardee" <> floridly penned in

I had a really funny (in retrospect) conversation with an Amway
representative in an Applebee's restaurant in Columbus, Ohio once. (He
didn't get me, by the way.)

Should have known something was amiss when he ordered a virgin strawberry
daiquiri...

 

Understood.

My gut reaction is to agree that indirect injection results in more soot,
also much less diesel cackle. This soot gets into the oil, obviously.
Please explain why direct injection design would promote "slightly more"
soot fouling of the oil. What am I missing?

Are limiting oil consumption to the context of diesels here?

YIKES! The SD22 by the 3,000 mile post (on Delo 400)(estimated time: 100
hrs/30 mph average) is soot fouled enough that when you rub a little between
your fingers, that getting the black crap off your skin requires serious
pumice soap. Solvent doesn't touch it. I use hospital latex gloves on
oil/filter changes! Wised up quick. Can't speak difinitively about the
viscosity at this mileage. Never sent a sample for laboratory.

All that from simply losing an oil cooling jet? Sounds fishy ... sorry.
When you say "this engine runs so hot..." ... which "hot" are you referring
to? Coolant? Oil temperature? Exhaust temperature? Combustion chamber
temperatures? Is the injection timing known to be correct for the fuel
quality?? Perhaps a little less timing advance?

 

Once again ... just because the manufacturer makes such a specific
requirment does not make that oil a mainstream oil. What you find on the
shelves of Autozone, PepBoys, Napa, TA, Petro, 76 truck stops, and (any
name) gas station is mainstream.

 

Hahahhahha Recall the great Toyota V6 debate.

 

If you are given a maintenance schedule to change your oil every 3k
miles, and you don't(even with an oil analysis), do you think you met
your end of the warrenty agreement?

Just asking....

Tom @ www.BookmarkAdmin.com

 

If Pennzoil was free I wouldn`t use it. I have only seen one eng in 30
years run on that stuff that wasn`t a mess inside when tore down. Hardly
any detergent there. KB (ps the shit killed many ford 2300 cams as per
ford TSBs. in the 1970s)

 

It would be a 'get out' for the manufacturer here. For industrial machines
and prime movers then an oil analysis and proof of reasonable maintenance,
such as an in-house service record, would suffice.

Huw

 

Only the latest direct injection diesels foul their oil slightly more than
versions of about pre 2000 due to previously mentioned reasons. Compared to
indirect injection diesels they pollute their oil far less with soot.

Most of my diesel engines use virtually no oil between services. My Toyota
diesel running at twice the recommended oil change interval on synthetic oil
uses no oil at all AFAICS up to 10,000 miles. The Mercedes did use half a
quart to reach 15000 miles initially but was using less when I sold it.

The Land Rover achieves this in the first mile, believe me.


Solvent doesn't touch it. I use hospital latex gloves on

Oh yes. The little cranked pipe which sprays oil under the piston crown
broke off at the banjo bolt.

All of the above. Coolant being, in this case, the sump oil which bathes the
lower part of the cylinders and under the piston crown. The upper cylinder
and head are air cooled. When it failed catastrophically, it was not even
working that hard, just hauling a ten ton load [17 ton gross] up a two mile
hill. It is a 160 hp electronically controlled 6litre turbo intercooled
engine with around 580Nm torque at 1400rpm. It does not have much constant
power, let alone rising power charachteristic and a rather modest torque
rise of some 25% by todays standards.

It has been known to work at maximum power output for hours on end, and it
is here that it runs exceedingly hot. All parameters appear to be
significantly hotter than any other engine I run. Such engines, very
economical though they are, have been phased out recently because their
combustion temperature does not lend itself to passing emission regulations,
in particular oxides of Nitrogen.


Is the injection timing known to be correct for the fuel

Everything is spot on and no adjustments were made when it was repaired and
it has been going as well as ever since the cylinder was repaired.


Huw