Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-16-2020, 07:20 PM   #1
Veteran Member
 
City: englewood florida
Country: us
Join Date: Apr 2019
Posts: 94
Anti freeze additive

I was wondering if anyone uses a product like prestone anti rust inhibitor and water pump additive? It does not contain stop leak just anti rust and lubricants..
__________________
Advertisement

cbouch is offline   Reply With Quote
Old 09-16-2020, 08:03 PM   #2
Guru
 
Lou_tribal's Avatar
 
City: Quebec
Country: Canada
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 4,005
Quote:
Originally Posted by cbouch View Post
I was wondering if anyone uses a product like prestone anti rust inhibitor and water pump additive? It does not contain stop leak just anti rust and lubricants..
What you describe looks to already be there in prestone antifreeze so what is the need to add more?

L
__________________

Lou_tribal is online now   Reply With Quote
Old 09-16-2020, 08:03 PM   #3
Guru
 
City: Rochester, NY
Country: USA
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 2,262
Proper engine antifreeze already has rust inhibitors and such in it. No reason that I know of to add more.
rslifkin is online now   Reply With Quote
Old 09-16-2020, 08:08 PM   #4
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 17,182
MAC’s 13
It’s a lubricant. It actually has oil in the additive. You add it to your coolant.
Perhaps it’s pre-ilmulsified (sorry the spell) but it’s oil and it probably lubricates the pump bearing but one needs to not put too much in the coolant ... like I did. Follow the directions and ditch any notions of some is good more is better.
It will become a big mess w too much.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 09-17-2020, 06:12 AM   #5
Veteran Member
 
City: englewood florida
Country: us
Join Date: Apr 2019
Posts: 94
Supposedly the antitrust additives in pristine wear out so that is why they say to replace it every few years. So why do that if you can just replace the additive??
cbouch is offline   Reply With Quote
Old 09-17-2020, 07:07 AM   #6
Guru
 
City: Northport
Country: USA
Join Date: Aug 2015
Posts: 1,656
Quote:
Originally Posted by cbouch View Post
Supposedly the antitrust additives in pristine wear out so that is why they say to replace it every few years. So why do that if you can just replace the additive??
"So why do that if you can just replace the additive?"
Contaminants and breakdown of existing additive package can coat the insides of the cooling system adding a layer of insulation exactly where you want heat tranfer to occurr. Removing old coolant and replacing with an adequate mix is cheap insurance against this buildup - in some cases flushing agents used before the new coolant is added is also required.
smitty477 is offline   Reply With Quote
Old 09-17-2020, 07:23 AM   #7
Guru
 
City: Rochester, NY
Country: USA
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 2,262
You can do antifreeze testing to determine when an additive top-up is needed, but it's rare on smaller engines. Typically it's only cost effective when the system holds many gallons.
rslifkin is online now   Reply With Quote
Old 09-18-2020, 06:02 AM   #8
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 20,981
IF antifreeze protection is not required where you boat , 100% distilled water , with water pump lube works fine.

But it too must be changed out every so often.

Cost is not the big advantage engine cooling is .

Antifreeze only has 5/8 the heat transfer ability of water , cars use high pressure caps (15-18PSI) to overcome this, but most old boats have 2 or 3 PSI cooling systems .

In Fl we use 1/3 antifreeze 2/3 distilled water and a can of WP lube .
FF is offline   Reply With Quote
Old 09-18-2020, 06:52 AM   #9
Guru
 
City: Rochester, NY
Country: USA
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 2,262
Yes, less antifreeze can make sense in conditions where you're pushing the outside temperature limits of the cooling system. Once you get down to a low enough amount, then adding corrosion inhibitor is necessary.
rslifkin is online now   Reply With Quote
Old 09-18-2020, 08:04 AM   #10
Guru
 
City: Northport
Country: USA
Join Date: Aug 2015
Posts: 1,656
Quote:
Originally Posted by FF View Post
IF antifreeze protection is not required where you boat , 100% distilled water , with water pump lube works fine.

But it too must be changed out every so often.

Cost is not the big advantage engine cooling is .

Antifreeze only has 5/8 the heat transfer ability of water , cars use high pressure caps (15-18PSI) to overcome this, but most old boats have 2 or 3 PSI cooling systems .

In Fl we use 1/3 antifreeze 2/3 distilled water and a can of WP lube .
"In Fl we use 1/3 antifreeze 2/3 distilled water and a can of WP lube ."

Interesting - when used in vehicles not intended to see freeze conditions we always used softened water and avoided DI water when used with a lube/additive non coolant package.

https://www.hyperlube.com/blog/blog/...ooling-system/
smitty477 is offline   Reply With Quote
Old 09-18-2020, 08:26 AM   #11
Guru
 
kchace's Avatar
 
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,934
Quote:
Originally Posted by cbouch View Post
Supposedly the antitrust additives in pristine wear out so that is why they say to replace it every few years. So why do that if you can just replace the additive??

Its important to flush out the cooling system every few years, so replacing the antifreeze with fresh while you're there does it all at once.



Ken
__________________

kchace 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





All times are GMT -5. The time now is 09:45 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012
×