My swift is fitted with tachometer, however manual says nothing about its use.
Can any one provide more details about how to use tachometer to get optimum FE to decide when to shift to higher gear and what is the minimum rpm i should maintain. What are the suitable rpm for each gear.
Tachometer shows you the revolutions of your crank shaft. To get optimum FE you need to up-shift early and shouldn't revv too hard. There is no such thing as minimum rpm to be maintained, it depends on how you ride, all you have to do is feel your car, and whenever you feel lack in power just down-shift and pedal her, its that simple . By the way is your swift a Diesel or petrol one ?
I mostly shift by feeling the power output and engine sound on my bike which does has tachometer. Looked at tacho only if i'm in power mode to optimize the performance(and hence maximize the fuel consumption ). Will not be getting it in my soon to be delivered Figo EXI.
When you feel the engine is delivering enough power and hes been doing it for a while, then shift up and when you feel the engine is unable to give enough power then shift down.
In case I am understood then I am happy and if not, then I am ready to elaborate but then you will need to have a stone heart to read it complete.
Ideal RPM for shifting gears is around 2000 for most of the small petrol cars. Regarding speeds,iam shifting to 2nd gear in the range 10-15kmph,3rd in 20-25,4th in 35-40,5th in 50-55 in my spark.It is more or less the same recommended by the manufacturer.