When driving Honda Civic you surely need turn signals to work properly. Also for 1990 model year cars you’ll need exact nominal power of 21 W. For Civic 1.5 it’s better to buy 1992 model turn signal by replacing it ready-fitted. If you need new lights of turns in Civic, choose only BA15S SCC type of base. Quality factory bulbs in cars with 1.5 motor volume of Honda’s production live long enough. In all 1985 modifications with EW3 code of motor producer installed special size of bulbs. The important feature to look at when buying bulbs for Honda is voltage at 12 V.
One of destroying factors is over 12 V voltage lamp and bulbs having more capacity than 21 W. But if the glass isn’t damaged in Honda Civic turn lamp, replace the bulb only. It’s better to buy BA15S SCC base lamp to ensure that lights in 1995 Honda Civic work properly. It won’t help your 1.5 motor car with code EW3 to save normal light work.