1.0 Fuels for Gasoline Engines: Notes

Use only unleaded gasoline in vehicles equipped with a catalytic converter.

Gasolines are expected to fulfill many requirements to guarantee the desired operating conditions during all environmental and driving conditions.

For application in BMW cars it is permitted to add up to and including 10% ethanol or other oxygenates with up to 2.8% oxygen by weight (i.e. 15% MTBE or 3% Methanol plus an equivalent amount of co-solvent). However, driveability problems may result from the use of such fuels, especially under certain environmental conditions such as high ambient temperatures and high altitudes.