Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-12-2018, 11:29 AM   #1
Veteran Member
 
City: Barnegat Bay
Vessel Name: Hey Jude
Vessel Model: KK42-94
Join Date: Aug 2014
Posts: 84
Recommended Coolant for Lehman SP135

Hi gang,
Can someone provide a recommendation for coolant to use in a Lehman SP135 as well as recommended time between flushes. I did some searching of the forum but didn't get any hits, though I might not have used the right keywords in the search. I've heard people say some extended life coolants can clog up cooling passages under certain conditions, even with reasonable flush cycles, which I wouldn't have expected to hear. In any case, any/all input is greatly appreciated.

Thx
Karl
__________________
I'll never grow up, nope, not me.
... Peter Pan
KapnKarl is offline   Reply With Quote
Old 03-12-2018, 12:38 PM   #2
Moderator Emeritus
 
Comodave's Avatar
 
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,191
I have SP225s in my boat. I talked to Brian at American Diesel. He said I can use any type so I went with Zerex G05.
Comodave is offline   Reply With Quote
Old 03-12-2018, 01:06 PM   #3
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,155
plain old cheapo Prestone is what Am Diesel recommended.

50 plus year old blocks arent fussy.

As cheap as it is, a 2 to 3 year or 1000 hr intetval is probably plenty unless you see contamination.
psneeld is online now   Reply With Quote
Old 03-12-2018, 01:12 PM   #4
Guru
 
kchace's Avatar
 
City: Brookline, NH
Vessel Name: Shalloway
Vessel Model: Defever 44, twin Perkins
Join Date: Sep 2013
Posts: 2,260
Quote:
Originally Posted by KapnKarl View Post
Hi gang,
Can someone provide a recommendation for coolant to use in a Lehman SP135 as well as recommended time between flushes. I did some searching of the forum but didn't get any hits, though I might not have used the right keywords in the search. I've heard people say some extended life coolants can clog up cooling passages under certain conditions, even with reasonable flush cycles, which I wouldn't have expected to hear. In any case, any/all input is greatly appreciated.

Thx
Karl
The manual does not specify any particular type. There are enough reports of various incompatibilities with extended life AF and I think it encourages lack of maintenance, so I stay away from it. I use standard yellow bottle Prestone. 5 gallons per engine. Check concentration before and after layup. Drain, flush and replace every few years.

Ken
kchace is offline   Reply With Quote
Old 03-12-2018, 02:37 PM   #5
Veteran Member
 
City: Barnegat Bay
Vessel Name: Hey Jude
Vessel Model: KK42-94
Join Date: Aug 2014
Posts: 84
Really appreciate the responses. Great info! Thanks!!
__________________
I'll never grow up, nope, not me.
... Peter Pan
KapnKarl is offline   Reply With Quote
Old 03-12-2018, 03:50 PM   #6
Guru
 
Xsbank's Avatar
 
City: Pender Harbour, BC
Vessel Name: Gwaii Haanas
Vessel Model: Custom Aluminum 52
Join Date: Sep 2013
Posts: 3,791
Use any one rated for diesel (I buy the long-term stuff) and buy test strips from a CAT dealer. Then test the coolant (annually) and buy the additives when they need it. Or, if you use a coolant filter, it renews the additives when you change it. DO NOT use pure water. It is imperative that you use coolant.
__________________
Don't believe everything that you think.
Xsbank is offline   Reply With Quote
Old 03-12-2018, 11:07 PM   #7
Veteran Member
 
City: Barnegat Bay
Vessel Name: Hey Jude
Vessel Model: KK42-94
Join Date: Aug 2014
Posts: 84
Thanks Xs!
__________________
I'll never grow up, nope, not me.
... Peter Pan
KapnKarl 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 08:48 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