Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-15-2015, 12:18 PM   #21
Scraping Paint
 
City: -
Join Date: Oct 2007
Posts: 13,745
Quote:
Originally Posted by manyboats View Post
M

It's a matter of what's best for your application .. not just choosing a better product.
i don't disagree with that at all. However very often the best for the application is also the better product. Our Range Rover will run on 87 octane but the engine was designed to be run on higher octane so that's what we run it on. The engine in my new pickup was designed to run on 87 octane. It will actually run on E85 although the manual is worded in such a way as to imply one would be a fool to do it.. So i run it on 87 octane.

We use Cat diesel coolant in the engines on our boat. Is it absolutely necessary? Maybe not. But I prefer to follow the advice of people we know who are actually in the diesel engine manufacturing industry rather than a lot of conflicting anecdotal opinions on an amateur boating forum. And since nobody has said that coolant formulated for diesel engines is bad for the engines in our boat, it makes no sense to not use it, particularly when the overwhelming opinion of the folks we've talked to in the diesel engine industry is to use it.

In the case of coolant, the cost difference between using diesel coolant and the automotive "green stuff" is insignificant. Particularly when one figures in how seldom one has to buy it. It's not like fuel, which one has to buy all the time.

So that's why we do what we do. What other people do is what other people choose to do.
Marin is offline   Reply With Quote
Old 07-15-2015, 02:28 PM   #22
Guru
 
READY2GO's Avatar
 
City: Marathon, Florida
Vessel Name: Walkabout
Vessel Model: 1989 Sea Ray 380 Aft Cabin
Join Date: Jan 2012
Posts: 521
I had a half gallon of antifreeze left so I measured the temp of it and of the jug of distilled water then mixed them togather.

Antifreeze 85.6° It was stored in the ER.
Distilled Water 82.4° It was stored in a cabinet.
Mixed togather 94.2°

So it was not just my imagination.

It did begin to cool right away though.
__________________
"Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain

www.mikeandsharondunsworth.blogspot.com
READY2GO is offline   Reply With Quote
Old 07-16-2015, 05:58 AM   #23
Guru
 
Pgitug's Avatar
 
City: Punta Gorda, fl
Vessel Name: Escapade
Vessel Model: Nordic Tug 37 2002
Join Date: Jan 2015
Posts: 1,231
The yellow Prestone antifreeze is a No No for Any diesel. It will "Scale" the tubes of your heat exchanger and Slowly over time begin to over hear your diesel. Two years of frustration before I figured this out!
Pgitug is offline   Reply With Quote
Old 07-16-2015, 10:23 AM   #24
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,743
Marin,
Many folks even in the marine industry have different opinions and recommendations. The only thing to do then is to buck up and get as objective as possible and look at all the variables. For example if we knew many skippers that have gone for decades using the green stuff we could be very correct and comfortable doing same. I lean too strongly at times to the think for myself way of coping w things but most often it works well. I used an ultra performance synthetic motorcycle racing oil in my UL aircraft engine when the manufacturer said don't use it. They said they didn't have time to test all the very different kinds of synthetic oil. So I did my own testing and it payed off.

READY2GO,
Thanks for taking the time to test.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 07-16-2015, 10:50 AM   #25
Guru
 
Brooksie's Avatar
 
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,306
Quote:
Originally Posted by READY2GO View Post
I had a half gallon of antifreeze left so I measured the temp of it and of the jug of distilled water then mixed them togather.

Antifreeze 85.6° It was stored in the ER.
Distilled Water 82.4° It was stored in a cabinet.
Mixed togather 94.2°

So it was not just my imagination.

It did begin to cool right away though.
Interesting... thanks
Brooksie is offline   Reply With Quote
Old 07-16-2015, 10:51 AM   #26
Guru
 
AusCan's Avatar
 
City: Adelaide
Vessel Name: Kokanee
Vessel Model: Cuddles 30 Pilot House Motor Sailer
Join Date: Jul 2012
Posts: 3,218
I'm using a long life organic acid coolant.
I'm not a big fan of the old school green coolant mainly due to the silicates used for protection. They are slightly abrasive and cause wear on bearings and impellers. The other problem is that they are sacrificial in nature, and lose their ability to protect your engine over time, whereas the protection of organic acid coolants does not diminish.

The only disadvantages with the OA coolants are that they shouldn't be mixed with the green stuff (and vice versa) and they are not suitable for old style copper radiators because it does not protect the lead solder.

Other than that - fill it up and your good to go for 5 years.
AusCan is offline   Reply With Quote
Old 07-16-2015, 11:25 AM   #27
Guru
 
AusCan's Avatar
 
City: Adelaide
Vessel Name: Kokanee
Vessel Model: Cuddles 30 Pilot House Motor Sailer
Join Date: Jul 2012
Posts: 3,218
Quote:
Originally Posted by READY2GO View Post
I had a half gallon of antifreeze left so I measured the temp of it and of the jug of distilled water then mixed them togather.

Antifreeze 85.6° It was stored in the ER.
Distilled Water 82.4° It was stored in a cabinet.
Mixed togather 94.2°

So it was not just my imagination.

It did begin to cool right away though.
Just a guess - But I would say the antifreeze contained some ethylene, which when oxidises produces ethylene oxide. When that mixes with water, it causes a chemical reaction which produces ethylene glycol, (the main ingredient in antifreeze.)

Maybe your batch was short a pinch of water..
AusCan is offline   Reply With Quote
Old 07-17-2015, 06:09 AM   #28
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 22,553
"The only disadvantages with the OA coolants are that they shouldn't be mixed with the green stuff (and vice versa) and they are not suitable for old style copper radiators because it does not protect the lead solder."

And how do you think your engines heat exchanger tubes are held in place?
FF is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 04:00 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012