Will these work with the orange Dexcool antifreeze?

My mechanic said not to put anything into the anti-freeze. I will never use that orange stuff in my 1994 Cadillac 4.9 Deville. If you have the 4.6 North Star, that may be different story. GM tried to promote these tablets to cure a bad leaky North-Star motor. Jeff.

Is this product preventative ?

Yes, this was actually put into aluminum block engines from the factory because of the porosity. It does an incredible job stopping leaks and preventing leaks.

what is a ladder frame?

A ladder frame uses an additional block structure located between the cylinder block and oil pan, which incorporates the main bearing caps into a one piece component resembling a ladder, sometimes called a girdle.Feb 6, 2018

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🔧 Seal it right, seal it tight—engine confidence in every drop!

OEM TRUSTED QUALITY - ACDelco original equipment part guarantees factory-level reliability
FAST TRACK APPLICATION - Apply and torque bolts immediately—no wait time for curing
HIGH VISCOSITY FORMULA - Thick, durable sealant that cures on contact with air for lasting performance
PRECISION ENGINEERED SEAL - Ensures leak-proof protection across oil pans, manifolds, and cam covers
MULTI COMPONENT COMPATIBILITY - Perfect for front/rear covers, ladder frames, T-joints, and more

The ACDelcoGM Original Equipment 10-108 Cooling System Sealing Tabs deliver a high-viscosity, quick-curing sealant designed for versatile use on critical engine components. Trusted by OEM standards, it enables immediate assembly with oil or coolant, ensuring a reliable, leak-proof seal that keeps your engine running smoothly.

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Manufacturer	ACDelco
Brand	ACDelco
Model	AC Delco
Item model number	10-108
Exterior	Machined
Manufacturer Part Number	10-108
OEM Part Number	12378255
Position	Front
Item Weight	31.8 g

ACDELCOGM Original Equipment 10-108 (12378255) Cooling System Sealing Tabs - 4 g

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