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Description:
dgwrt, sdgsdg
The model of the car
The age of the car(for car model with displacement between 1.6and 2.4 at 2~7 years age, 5%-10% can be saved)
If its new car in good state, less can be saved(5%-6%)
(for car with displacement between 0.8-1.5 at 1, 2 or 3 yearsage, 5%-6% can be saved)
HY101 car fuel saver