We have all seen liquids, powders, kits and other "miracle"
concoctions in jars that claim they are a "fix in a can". Well we
are here to tell you that not all of these products are
Zo-Tite's U.S. patented Blocksaver product has been
used by friends of the VAC machine shop for nearly 40 years and
been a USA made product with an excellent reputation since 1939!
This product simply works! Its low cost, and non-volatile
formulation means you have nothing to lose in using it to repair
your engine. We have even found it to work well on some notorious
engines, and even stopped leaks on large cracks in heavy duty
equipment. It’s a true 'Wow' factor even for professionals like
Unlike other products, we consider Zo-tite Blocksaver "machine
shop friendly", meaning it won't adversely affect the repair of the
engine component should it fail to fix the problem and professional
machine work, or replacement of a component is needed.
When added to your engines coolant, Blocksavers small metallic
formulation finds the leaking crack and forms a barrier that sets
up wet, then permanently fuses together, sealing the leak
-permanently. Customers have even told us they have watched the
leak stop! Don't ask us exactly how it works so well, but this
product has had great success where others have failed.
This can also sometimes fix leaks in things like radiators and
thermostat housings. Don't let the looks of this product fool you
either; we have found it works for new and old engines alike. This
is one of those products professional equipment pros have been
using for years. While this product does not claim to fix head
gasket leaks, and we recommend that head gaskets are replaced if
leaking; we have heard several stories of success for this use.
When we noticed no one offered this great product for sale on
the internet, we couldn't help but be pleased to offer it to
Compatible with Aluminum and Iron engines. Can help to
permanently stop leaks in:
Use (1) bottle for every (5) gallons of coolant
Great Customer Service
From Joel M of Riverhead, New York on 6/9/2016.
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