| Manufacturer: | Starbrite |
| MPN: | 31500 |
| Product SKU: | STR-31500 |
Safe for all engines including aluminum. Non-toxic propylene glycol formula, provides burst protection down to -100F. Contains corrosion inhibitors to protect all mental engine components and seals. The most effective and safest way to protect all marine engine freeze-up damage during winter storage.




1 Reviews
![]() ![]() ![]() ![]() Great Quality, 8.26.2008
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| Reviewer: Leon (, MN) |
| This is a good quality product. I have used it for three years with great results. I would recommend the -100 even if -50 is only required. |
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Directions for Using Star brite's Anti-Freeze in Marine Engines and Water Systems
