To maintain cooling system you need 5.3 liters of Red coolant. It’s important to provide cooling for Honda’s engine with 1.6 liters volume. For Honda Civic it’s important to have optimal antifreeze inside. It’s better to choose fluid in combination of 1989 year, 1.5 volume of motor and engine code of D15B2. Otherwise Civic made in 1988 won’t serve you long enough.
There is an important thing for D16Y6 engines of Honda’s production – they expect good service. So, don’t choose different from Red coolant and obey the number of 5.3 liters. So better use Honda’s advice for servicing 1991 Civic. Providing you keep the rules 1.5 motor installed in Civic of 1992 year will be long lasting.