Winterizing-HOW MUCH ANTIFREEZE?

enginesilo

Petty Officer 1st Class
Joined
Jun 9, 2008
Messages
355
I am wintering my Mercruiser 3.0 this year and was curious to know how much anti-freeze I should buy to winterize properly?

I plan to follow Don's winterize sticky post.

How many gallons will do it?
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,363
Re: Winterizing-HOW MUCH ANTIFREEZE?

About 3 should do it.2 for the block, 1 for the manifold.
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Winterizing-HOW MUCH ANTIFREEZE?

Sounds about right, my v-8 drains exactly 4-1/2 gals between the block and manifiolds. I just drain the water, block and manifolds have survived many Ohio winters.
 

JustJason

Vice Admiral
Joined
Aug 27, 2007
Messages
5,321
Re: Winterizing-HOW MUCH ANTIFREEZE?

Actually... I did 4 3 liters last week. You'll use a little under 2 gallons. Make sure you buy the -100F stuff.
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,148
Re: Winterizing-HOW MUCH ANTIFREEZE?

Winterizing-HOW MUCH ANTIFREEZE?
How many gallons will do it?

Ayuh,.... None if ya do it Right....
 

schankla

Seaman Apprentice
Joined
Oct 17, 2009
Messages
32
Re: Winterizing-HOW MUCH ANTIFREEZE?

my 4.3 took a lil under 2 gallons in the block through the thermostat housing.
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Winterizing-HOW MUCH ANTIFREEZE?

I drain excatly 4-1/2 gals of lakewater from the heds and manifolds each year.
 
Top