Anyone Using Amsoil Propylene Glycol Coolant In Their Diesel

moisheh wrote:
OAT coolants used to have that corrosion problem. BUT they all have been reformulated and Cummins does approve. BTW: That Amsoil c--p does NOT meet Cummins or any other diesel mfr. specs. It is NOT approved.

Moisheh

It says it meets Cummins CES 14603.

Blaster Man wrote:
Basically, the green/blue is old, red/orange is new. I use Peak Final Charge Global Extended Life...it meets Cummins 14603 standards.

You should not go by color alone as it doesn't mean a thing.

moisheh wrote:
OAT coolants used to have that corrosion problem. BUT they all have been reformulated and Cummins does approve. BTW: That Amsoil c--p does NOT meet Cummins or any other diesel mfr. specs. It is NOT approved.

Moisheh

That's the problem with Amsoil. They like to make all kinds of claims, but rarely are certified for the specs they claim to exceed.
Lots of hype but no real substance.

OAT coolants used to have that corrosion problem. BUT they all have been reformulated and Cummins does approve. BTW: That Amsoil c--p does NOT meet Cummins or any other diesel mfr. specs. It is NOT approved.

Moisheh

I'm a bit confused as to why the OP is running PG coolant in the first place since all the convention coolants are EG. The only place on the coach the uses PG are those that might come in contact with drinking water and the such.

Before I switched to the extended life my all Cat wanted was coolant that met their standards as stated on the bottle...that and the additive of course.

Ran across this a couple of minutes ago;

http://www.thefreelibrary.com/Cavitation+Erosion+Of+Cylinder+Liners+And+How+To+Eliminate+It.-a054344138

I think I'll change to a 15# radiator cap.

Basically, the green/blue is old, red/orange is new. I use Peak Final Charge Global Extended Life...it meets Cummins 14603 standards.

unkledaddy wrote:
I probably will go to Cummins locally and see about changing over to
their OAT coolant. Three years ago they talked me out of it. I'll see
what they have to say now, with three more years of experience and
re-formulations. When I see that big poster on their wall offering
an in chassis re-sleeve with a dollar amount (knowing it's more for
a DP than a semi) I either want to get back to my old gas model or
do some serious research on coolants.

I feel your pain. I have an '03 vintage Cummins and after exploring the coolant options I have decided that "if it ain't broke, don't fix it". I decided that its not such a bad thing to think about my coolant a couple of times a year and pull a sample & test it. Conventional coolant with the DCA package is an excellent coolant in every way and is universally available if you have a need on the road. Mixing brands is not a problem. With OAT you should be careful about topping up with same brand as all OAT coolants do not use compatable formulations and you could leave yourself without cavitation protection.

I just flushed & filled with Fleetguard ES Complete EG. I will change my coolant filter with a DCA charged one annually and use test strips every six months or so.

I

I probably will go to Cummins locally and see about changing over to
their OAT coolant. Three years ago they talked me out of it. I'll see
what they have to say now, with three more years of experience and
re-formulations. When I see that big poster on their wall offering
an in chassis re-sleeve with a dollar amount (knowing it's more for
a DP than a semi) I either want to get back to my old gas model or
do some serious research on coolants.

unkledaddy wrote:

Blaster Man wrote:

wolfe10 wrote:
OK, have to ask-- why don't you want to run an OAT-based coolant. That is the high end coolant by Caterpillar and Cummins (Fleetguard) as well as others for their diesel engines???

I was wondering the same thing. The new stuff is good for years. I put propylene glycol in the Aqua Hot, not the Cummins.

I have a copper heater core. OAT corrosion inhibitors provide excellent long-term protection for aluminum and cast iron, but may not be the best choice for older cooling systems that have copper/brass radiators and heater cores, especially the lead solder used in them.

I wonder if this "don't use with copper/brass radiators" advice is current. I know there were initial issues with the OAT based coolants, but that was years ago.

Said another way, I don't know if this advice has basically become "an old wife's tale".

SOOO, here is current information from Fleetguard and Caterpillar websites:

http://www.cumminsfiltration.com/html/en/products/cooling/coolant/es_compleat/oat.html


Lifetime coolant with 300,000 mi, 500,000 km, 6000 hrs service intervals
Provides antifreeze and antiboil protection
Superior liner pitting and corrosion protection
Superior aluminum and solder protection
Compatible with gaskets, elastomers and other non-metallics in the engine
Optimizes cooling system performance and water pump life
Contains proprietary scale inhibitors


http://parts.cat.com/parts/machine-fluids/coolants/extended-life-coolant

Cat ELC is developed, tested and approved by Caterpillar to meet the same high standards as all genuine Cat parts.
Factory-Fill - Used as standard factory-fill for all Cat machine cooling systems.
Lower Maintenance Costs - Reduces engine coolant and additive costs by as much as 500% compared to conventional coolants. Cat ELC eliminates the need for supplemental coolant additives, extends coolant change-out intervals and reduces disposal requirements.
Advanced Metal Protection - Incorporates an advanced formula technology with organic acid additive corrosion inhibitors, such as a combination of mono and dicarboxylates for maximum protection of copper, solder, brass, steel, cast iron and aluminum.