Q9: When the second “BT-X Fuel Saver” is installed after 5 years, should the first one be taken out ? 問9：5年後第二次要置入【BT-X環保節油器】第一次置入的須取出嗎？

Answer 9: Not necessary. Because the “BT-X Fuel Saver” is small and it will not take much space.



答9：不用取出。因為BT-X環保節油器體積很小不會佔太大空間。