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Ship changes oil every TWO hours! #4385186
04/21/17 01:10 PM
04/21/17 01:10 PM
Joined: Aug 2004
Posts: 1,483
San Antonio, Texas
sasilverbullet Offline OP
sasilverbullet  Offline OP
Joined: Aug 2004
Posts: 1,483
San Antonio, Texas
At 42:10, they say they have to change the oil in the 9 piston, 50K bhp engine every two hours!



Yikes!

Let's have some fun, please let's all apply our BITOG funny comments to this one... smile

banana

Last edited by sasilverbullet; 04/21/17 01:10 PM. Reason: fixed video link

03 Porsche 911 Liqui Moly Leichtlauf High Tech 5w-40 & Mahle filter
14 Honda Accord 4dr EX-L 4cyl-M1 0W-20 & WIX XP
02 Chevy 5.7L van-GTX HM 10W-40 & WIX filter
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385192
04/21/17 01:15 PM
04/21/17 01:15 PM
Joined: May 2016
Posts: 718
Canada
i_hate_autofraud Offline
i_hate_autofraud  Offline
Joined: May 2016
Posts: 718
Canada

On most ships I've heard the opposite, oil stays in a dry sump tank and is filtered extensively
and used over a year, sump tank is often 1,000 gallons!

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385243
04/21/17 02:06 PM
04/21/17 02:06 PM
Joined: Jun 2014
Posts: 2,733
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline
Joined: Jun 2014
Posts: 2,733
Phoenix, Arizona - USA
That HAS to be a mistake.. either that, or he means that during the initial systems check process prior to its maiden voyage, it needs that.

If it DID need to be changed out that often during normal use, then on any standard voyage, I'd have to think they'd be going through potentially tens of thousands of gallons of oil on a normal tanker run... if not more.

Plus, shutting it down every two hours and draining and refilling the oil would result in ludicrous amounts of down-time every single day. Merely draining and refilling the oil from that engine could take longer than 2 hours.


.. That said, I think they should do a UOA of that 2-hour oil and send it in to Blackstone. I bet their analysis includes a comment like this:



2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 266,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 60,000mi
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385258
04/21/17 02:26 PM
04/21/17 02:26 PM
Joined: Dec 2008
Posts: 2,407
CA
raytseng Offline
raytseng  Offline
Joined: Dec 2008
Posts: 2,407
CA
sure maybe the oil gets changed but perhaps that terminology is misused as the oil might get filtered and reconditioned by some separate unit and eventually comes back to the engine. but for the purpise thata cobsidered a "change"

perhaps it means oil take a 2hours to make it back to the engine aftet going through whatever cycle it has.

Last edited by raytseng; 04/21/17 02:27 PM.
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385261
04/21/17 02:30 PM
04/21/17 02:30 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
S California
This is a heavy crude oil fired engine. That means it's direct drive, no gearbox. When you start the engine you're going to go somewhere right now.

The oil change comment is more of an oil maintenance cycle. The heavy oil gets cleaned and reused.

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385276
04/21/17 02:41 PM
04/21/17 02:41 PM
Joined: Aug 2003
Posts: 13,138
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,138
NE,Ohio
Just a sensationalist comment nothing to see there.

Dumbing it down to make it sound cool.


2019 Jeep Cherokee Trailhawk 2.0T
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385295
04/21/17 03:01 PM
04/21/17 03:01 PM
Joined: Dec 2002
Posts: 42,299
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,299
New Jersey
Maybe it circulates all the oil in the sump through the engine in two hours (seems slow but with a big enough sump anything is possible). Or fully filters/bypasses it? Or are these two stroke engines with enough lubricity in the heavy oil?

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385304
04/21/17 03:09 PM
04/21/17 03:09 PM
Joined: Jun 2002
Posts: 19,504
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,504
Iowegia - USA
Whoever wrote the script didn't understand Marine Engines.

The engine lubricating oil gets centrifuged and filtered and the heavy portions of the centrifuged oil is discarded.

Due to consumption for whatever reason, new "make-up" oil is added every two hours, drawn from the reservoir.


Last edited by MolaKule; 04/21/17 03:13 PM.

Scars remind us of where we have been, but do not have to dictate where we are going.
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385332
04/21/17 03:41 PM
04/21/17 03:41 PM
Joined: Jun 2015
Posts: 4,425
New England
Virtus_Probi Online mad
Virtus_Probi  Online Mad
Joined: Jun 2015
Posts: 4,425
New England
They should use Supertech conventional with an OCI that short.

;^)


2014 Forester XT, 90000 miles
Last Change;
M1 5W30 d1G2
Tokyo Roki 15208AA170 filter
Re: Ship changes oil every TWO hours! [Re: OneEyeJack] #4385342
04/21/17 04:03 PM
04/21/17 04:03 PM
Joined: Jul 2007
Posts: 315
Ottawa, Upper Kanuckistan
OldSparks Offline
OldSparks  Offline
Joined: Jul 2007
Posts: 315
Ottawa, Upper Kanuckistan
Originally Posted By: OneEyeJack
This is a heavy crude oil fired engine. That means it's direct drive, no gearbox. When you start the engine you're going to go somewhere right now.


Probably runs both HFO and LSFO because of the changes to the MARPOL Convention.

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385343
04/21/17 04:04 PM
04/21/17 04:04 PM
Joined: Aug 2016
Posts: 316
Alberta
carviewsonic Offline
carviewsonic  Offline
Joined: Aug 2016
Posts: 316
Alberta
I was surprised to read that these engines use 30wt in the sump, I would have thought a heavier wt, given the scale of these engines. 50wt is injected at the top end, since they are two strokes. For an emergency stop compressed air is used to stop and then reverse the engine, before fuel is injected to run engine in reverse. Kinda cool I think, at least to a landlubber like me.


'18 Impala
'05 Park Avenue
'07 Honda Accord
'09 VStar 1300
Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385398
04/21/17 05:39 PM
04/21/17 05:39 PM
Joined: Sep 2004
Posts: 21,927
Orlando, FL
Mr Nice Offline
Mr Nice  Offline
Joined: Sep 2004
Posts: 21,927
Orlando, FL
Just like any very big engine, it has a huge oil sump.

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385422
04/21/17 06:12 PM
04/21/17 06:12 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Online content
BrocLuno  Online Content
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
All the ships I worked on had somewhere between 800 and 1,200 gallons of lube oil. Oil/Water separator, centrifugal filter and filter chest with bats that could be re-cleaned and re-used. Typical turn-over was on the order of all oil passing the filtration system about every 4 hours if turning max revs ... Total filtration was/is a statistical exercise as some oil get recrirc'd much quicker and some does not get off the bottom of the tank for a while (tanks are baffled for rough seas).

Oil changes depended on total steaming time vs at anchor time, and UOA done every 150 hours based on the control board meters. Oil samples were taken even en route and shipped to lab from next port of call. If lab said oil was getting depleted, it was changed dockside from a pumper truck at next contracted port of call, or home port - whichever came first.

Changing ships oil is not fun or cheap...


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Ship changes oil every TWO hours! [Re: Mr Nice] #4385426
04/21/17 06:16 PM
04/21/17 06:16 PM
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
Kira Offline
Kira  Offline
Joined: Aug 2010
Posts: 5,940
Champlain/Hudson Valley
My money's on bad script writing. Truly, nobody cares when a cheap production deadline comes 'round.

Believe me, a TV show made from mostly stock footage of any industrial process is the epitome of cheap production.

As stated by previous posters, likely 100% of the oil is cycled through its filtration system and topped off every 2 hours.

That cabin boys were sent into the Hindenburg's engine nacelles for 2 hour stretches to listen for abnormalities is very cool.

LESSON: Old black and white footage = truth
..............Modern color documentaries = bull fertilizer

Re: Ship changes oil every TWO hours! [Re: sasilverbullet] #4385514
04/21/17 07:59 PM
04/21/17 07:59 PM
Joined: Mar 2017
Posts: 148
Orbit
OPR4H Offline
OPR4H  Offline
Joined: Mar 2017
Posts: 148
Orbit
This engine was at Breakin, maybe they changed the oil at every 2h.


RPO-O
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