However, leaded motor fuel re-entered the UK market in small quantities from 2000 in response to lobbying from classic-car organisations who contended their vehicles would be rendered useless without leaded fuel. The lead content is up to 0.15 grams per litre; Bayford & Co is the only wholesale supplier.
Keep the rubber tree in an area with temperatures that reach about 80 degrees Fahrenheit during the day and 65 degrees at night. Place the plant's container on a water catch tray or in a sink. Pour water in the top of the container until water drains out the bottom. Remove any water that drains into the tray.
Tapping Trees for Natural Rubber. Â­The Mesoamerican peoples, such as the Mayans and the Aztecs, first tapped rubber from one of several trees found in Central and South America: 1  Hevea braziliensis: the most common commercial rubber tree from Brazil. 2  Hevea guyanensis: originally found in French Guyana.n these areas, you can find other rubber-producing trees including: 1  Ficus elastica: found in Java and Malaysia. 2  Funtumia elastica: grows in West Africa. 3  Landolphia owariensis located in the Congo basin.