It has been proven to seal small holes, cracks, and fissures inside the system, providing a permanent repair. Organic sealants with formulas that work effectively and safely on small cooling leaks. Apply 300ml per 6L of coolant. For coolant reservoirs larger than 6L, you can apply 2 products. Will not damage rubber hoses, seals, or other system components. Formulated to prevent clogging of radiator water passages and temperature sensors. Compatible with all types of coolant. Precision-Performance-Protection: this is the philosophy of the McLaren range.
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