Mercury - Manual-owners - 90-17746890 Mercury-135HP-EFI-2016 Your engine cooling passages are

Your engine cooling passages are fractions of an inch even on larger HP models as well as the associated hardware such as thermostats and check valves are all susceptible to clogging and fouling

Negative bus provides common location for negative collection

This advanced formula resists foaming

The cast aluminum reacts quickly

Mercury - Manual-owners - 90-17746890 Mercury-135HP-EFI-2016 Your engine cooling passages areManual owners WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.