Volkswagen Golf GTI 2016, Owner'S Manual

Page: 1044 / 1341

You can damage the engine by using incorrect additives.
Using incorrect gasoline additives can cause extensive engine
damage as well as damage to the catalytic converter.
If you must fuel your vehicle with gasoline whose octane rating
is too low, only drive with the engine speed in the middle of the
rpm range and with low engine load. Avoid high rpm and
heavy engine load. Otherwise, the engine could be damaged.
Refuel your vehicle with gasoline with the required octane
rating as soon as possible.
Do not use fuel that is labeled at the pump as containing
metal. Lead replacement fuel contains high concentrations of
metallic additives. Expensive engine and catalytic converter
damage could result.
Fueling your vehicle just one time with leaded fuel or fuel that
contains other metallic additives can affect the performance of
the catalytic converter and cause extensive damage to it.
NOTICE