Cadillac Owners Forum banner

1 - 6 of 6 Posts

·
Registered
1990 DeVille
Joined
·
181 Posts
Discussion Starter #1
Some people say "don't leave home without 'em", and others say "GM no longer recommends 'em". I talked with a Cadillac dealer's service manager who says they don't use them.

I saw one comment saying "Use only the genuine GM tabs, P/N XXXXXX", and another that says "Bar's Leaks is identical and cheap".

Some have said "Grind up the tabs" and others say "Bar's Leak gold-colored powder".

And finally, I saw "Never use the liquid" and "The liquid is just the powder in suspension and works fine."

Well, reports suggest that on my '90 4.5 the cooling system is perhaps the Achilles heel, so I'd like to get it exactly right.

???
 

·
Registered
'87 Coupe DeVille 4.1L FWD(New engine '08) 1981 F100 '03FXDL
Joined
·
879 Posts
Your cooling requires using them. Maybe the new cars don't need them, but the 4.9/4.5/4.1 cooling systems do. GM #3634621/AC Delco #10-108. Crush 'em up.
 

·
Registered
1998 Seville STS / 2013 Chevrolet Impala
Joined
·
1,889 Posts
Oh by all means yes.

With an aluminum block engine its important to use coolant tabs, because over time coolant can become acidic and create porosity in the block. If you don't want to use the tabs, at least pour a little baking soda into the coolant every year or so. Its a natural anti-acid.
 

·
Registered
1992 Sedan Deville, 1984 Lincoln Town Car
Joined
·
759 Posts
couldn't hoit :2thumbs: Recently there was a thread here with all Daboyz about it where come to find out the tabs are nothing more than ground ginger root and golden seal. Weird! Nah, for real?
 
1 - 6 of 6 Posts
Top