On a 1988 Mazda 323 auto with button on shifter is the overdrive gear subject to engine temperature the car will downshift if the temperature on gauge drops below a certain level less then one eight?
its 65 degrees, in Edinboro,Pa
Answer On most cars the overdrive is on when you start the car and put it in gear. This is the D (drive) with a circle around it meaning "overdrive". Cars with a center console shifter the overdrive button is usually on the side of the gear shift. You will know if the OD is off because a light on the dash will come on that says O/D off. If it is off there is…
The transmission defaults to overdrive, as well as enabling the 4th gear. There is a button on the end of the shifter that disables overdrive for times when it is rapid switching between 3/4th gear due to a certain speed etc. It can also be disabled to assist going up large hills for example or by improving engine braking properties. For normal use OD should be left on as is.