Q: If speed not exceeding 80km/h what is the problem with the car?

asked by on March 06, 2017

i just changed my suspension and thats when this problem started. the model of the car is Runx 4x4 and is consuming a lot of fuel but its a 1.5 litre engine. on steep roads it drops the speed to 40km/h or less . kindly assist

My car has 107000 miles.
My car has an automatic transmission.

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