One of the methods to improve the
combustion behavior in internal combustion engine is
by introducing additive to the base fuel. However, some
additive resulted in higher Brake Specific Fuel
Consumption (BSFC) and emission of CO and NOx.
The objective of this study is to examine the effects of
fuel additives quantity to the fuel economy and engine
emission. The tests were carried out at different engine
speeds (1500rpm-3000rpm) and different engine loads
(40Nm - 100Nm) using a four stroke gasoline engine.
The additive was blended with gasoline (RON95) in
composition of 5, 10 and 15 milliliter per liter
accordingly. BSFC was measured using Pro V2
software and exhaust emission was measured using
MRU AIR gas analyzer. Results showed that gasoline
blended with 5ml fuel additive lead to a significant
improvement on (BSFC) and higher carbon dioxide
(CO2) in its emission. Base fuel blended with 10ml/l and
15ml/l additive showed increasing in BSFC.