GMC 1994 Yukon Owner's Manual page 258

9.
Close the air bleed valve and replace the fuel cap.
IO.
Start your engine and let it idle for five minutes. Check your fuel filter
and air bleed valve for leaks.
Fuels in Foreign Countries
If you plan on driving in another country outside the U.S. or Canada,
unleaded fuel may be hard to find, Do not use leaded gasoline. If you use
even
one
tankful, your emission controls won't work well or at all. With
continuous use, spark plugs can get fouled, the exhaust system can corrode,
and your engine oil can deteriorate quickly. Your vehicle's oxygen sensor
will be damaged. All of that means costly repairs that wouldn't be covered
by your warranty.
To check on fuel availability, ask an auto club, or contact a major oil
company that does business in the country where you'll be driving.
You can also write us at the following address for advice. Just tell us where
you're going and give your Vehicle Identification Number (VIN).
General Motors Overseas Distribution Corporation,
North American Export Sales (NAES)
1908 Colonel Sam Drive
Oshawa, Ontario
L1H 8P7
Filling Your Tank
The fuel cap is behind
a hinged door on the
left side of your
vehicle.
A
CAUTION:
Gasoline vapor is highly flammable. It burns violently, and that
can cause very bad injuries. Don't smoke if you're near gasoline
or refueling your vehicle. Keep sparks, flames, and smoking
materials away from gasoline.
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