Originally posted by citfta
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the cerma improves friction and thereby reduces pollution, that extra fuel that was being wasted in the form of pollution is then used up to give the car extra Horsepower. (the people at cerma claim upto 27% more horsepower)
1. better fuel consumption also means less oxygen in the exhaust, a condition that the onboard computer responds with feeding the engine with a richer mixture of fuel.
2. that extra horsepower that youve gained, although is good for highway driving, we dont really need it as much in the city, specially in india where city speeds rarely exceed 25 MPH, so suppose we make the fuel leaner (which will require tuning of the onboard computer / oxygen sensor )and give up that extra HP, we should be able to save a little more fuel.
im not really a mechanic so perhaps im using the wrong term when i say oxygen sensor, but i am under the impression that with cars that have an oxygen sensor and a computer managing the fuel to air ratio it is difficult to modify that ratio without fooling the computer by modifying the signal coming from the oxygen sensor. correct me if im wrong.
JaggedE
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