I am having toyota vitz 2005 for more than a year and its a great car when it comes to fuel economy and other life saving features like ABS and Air Bags as compared to cultus santro etc.
recently i changed its engine due to the smokey previous engine which was already driven to 115k km's when i bought it.
with the new engine the car is now giving me mileage of almost 19 to 20 km/l on highway and i am satisfied with its performance.
i mostly travel from Islamabad to Lahore and back via Motorway when we enter salt range speed limit is 50kmph but i am afraid of pushing gas paddle too far to attain 50kmph because it hardly attains the speed no matter how far we press the gas paddle plus i really want to know if pushing gas paddle too far will harm the engine as engine will not be attaining the speed only it will be delivering torque its basically a trade off between speed and torque for example on a straight road at lets say paddle is pushed to 45% out of 100% and the speed will be lets say 75kmph but entering salt range with the 45% paddle pushed the speed will start decreasing to maybe 25 to 30kmph why the speed is decreasing and if i keep the paddle constant there will be knocking in the engine which is demanding more fuel to keep up the pace...
i want to know what is happening inside engine at that moment when speed is decreasing on hilly area and we are applying more fuel into the engine and engine is working hard to generate torque to climb the hill what if i apply full throttle while climbing will it put extra burden on the engine or what will happen if i apply full throttle while climbing as naturally engine cannot accelerate at that point but will burn the excess amount of fuel.......
kindly someone explain.
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