Extended Life Coolant/Antifreeze 877770Q1 is for use in all MerCruiser closed cooling systems in stern drive and inboard gasoline engine applications. This coolant is pre-diluted to a 50/50 mix with de-ionized water
Drain Screw gasket used with the 3/8-16 drain/fill screw found on all MerCruiser and most Mercury/Mariner outboards except Verado and those of Japanese origin
Compatible with most fuel gauges on the market today, with 33 (full) and 240 (empty) ohm gauges, and no moving mechanical parts makes them extremely durable
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