Fuels In Foreign Countries - GMC Yukon 2007 Owner's Manual

You should drive the vehicle immediately after
refueling for at least seven miles (11 km) to allow
the vehicle to adapt to the change in ethanol
concentration.
E85 has less energy per gallon than gasoline, so
you will need to refill the fuel tank more often
when using E85 than when you are using gasoline.
See Filling the Tank on page 457.
Notice: Some additives are not compatible
with E85 fuel and can harm your vehicle's fuel
system. Damage caused by additives would
not be covered by your new vehicle warranty.
Notice: Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in the fuel system and also damage
plastic and rubber parts. That damage would
not be covered under your warranty.
456

Fuels in Foreign Countries

If you plan on driving in another country outside
the United States or Canada, the proper fuel might
be hard to find. Never use leaded gasoline or
any other fuel not recommended in the previous
text on fuel. Costly repairs caused by use of
improper fuel would not be covered by your
warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business
in the country where you will be driving.