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Exxon Mobil Mobilgard M50 Diesel Oil #4507994
09/05/17 11:01 AM
09/05/17 11:01 AM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
California
Hello all,

Anyone familiar with this oil? There is an oil additive that is supposedly based on its add package. Their point is shipping containers run 2.4 million miles on this stuff and they market it for adding to automobiles. It has [high base calcium sulfonate Ester additive...along with long endurance phenols and viscosity improvers].

Don't want to start an additive fight, just curious if anyone is familiar with the chemistry in the Mobilgard M50 Diesel Oil. Thanks.


2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508008
09/05/17 11:12 AM
09/05/17 11:12 AM
Joined: Dec 2016
Posts: 8,006
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,006
Waco, TX
Additives are just a portion of it's suitability....

Is it a straight 50? What about HTHS?

Those huge, monstrous ship engines don't share a lot of operating parameters with my daily driver.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508021
09/05/17 11:21 AM
09/05/17 11:21 AM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline

Joined: Jan 2017
Posts: 1,139
USA
Product Data Sheet:

https://www.exxonmobil.com/en/marine/products/mobilgard-m50

When your daily driver looks like this:




Multiple Diesel and Gasoline vehicles
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508025
09/05/17 11:24 AM
09/05/17 11:24 AM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
California
Yes, that is what I figured (Learning on here!) smile Thought it was interesting to transpose this into an automobile additive package. More curiosity than anything else.

Last edited by mbacfp; 09/05/17 11:32 AM.

2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508057
09/05/17 12:14 PM
09/05/17 12:14 PM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline

Joined: Jan 2017
Posts: 1,139
USA
Originally Posted By: mbacfp
Yes, that is what I figured (Learning on here!) smile Thought it was interesting to transpose this into an automobile additive package. More curiosity than anything else.


We are ALL learning. I was just having fun.


Multiple Diesel and Gasoline vehicles
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508059
09/05/17 12:22 PM
09/05/17 12:22 PM
Joined: Sep 2015
Posts: 960
California
mbacfp Offline OP
mbacfp  Offline OP

Joined: Sep 2015
Posts: 960
California
No worries ArcticDriver. Picture made me laugh...thanks for the chuckle.


2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Charger SRT Hellcat
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508061
09/05/17 12:24 PM
09/05/17 12:24 PM
Joined: Sep 2010
Posts: 8,180
Texas
4WD Offline
4WD  Offline

Joined: Sep 2010
Posts: 8,180
Texas
Marine oils like MobilGard or Castrol MHP tend to have at least a TBN of 15 - those massive engines need heavy doses of additives and tolerate low grade fuels etc - not ready to try in my ecoboost ...

Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4508293
09/05/17 05:53 PM
09/05/17 05:53 PM
Joined: Dec 2016
Posts: 8,006
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,006
Waco, TX
I know nothing of their Lubrication systems.

Do they have huge bypass filtration systems?


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4514130
09/12/17 10:19 AM
09/12/17 10:19 AM
Joined: Oct 2010
Posts: 7,206
Michigan
A_Harman Offline
A_Harman  Offline

Joined: Oct 2010
Posts: 7,206
Michigan
TBN of 50. Blows my mind. We think 12 is high when discussing automotive oils.
Viscosity is in the 40 range, so that's not so weird.
Pour point of -6C, and ash of 6.5 removes it from consideration for use in highway vehicles.


1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck
Re: Exxon Mobil Mobilgard M50 Diesel Oil [Re: mbacfp] #4514961
09/13/17 09:54 AM
09/13/17 09:54 AM
Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
Most marine lubrication systems use "towel" filters (older systems). That is a chest of about 50 gallons capacity that contains racks of towels laid over hanger rods, like a towel over a wall rod. Lid is closed down and the oil flows through maybe 50 towels. These are switched out at 200~400 hour intervals. They then get sent through a solvent cleaning and a laundry cycle to be put back in service.

Late model modern systems use a series of cleanable "K&N" style cartridge filters that can be cleaned too. Very few use a throw away cartridge filter. Some have paper roll by-pass filters similar to the Franz filters, but about 100 times the size.

Lube oil pumps are often not part of the main engine. They are separate pumps driven by another power source. Sometimes their own engines. Sometimes electric. They are somewhat variable speed and they are driven to keep constant flow to the main engines at constant pressure. The lube tanks have cooling water heat exchangers built in. Oil conditions are controlled as to viscosity and temp before being sent to the main engines.

Oil is changed out based on chemistry and analysis. Most engineers can do pH and other basic measure of oil conditions right on the ship. We are talking 500 to 2,000 gallons of lube oil, depending on ships configuration. Not a cheap oil change laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
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