Hudson 481 Series, Руководство пользователя

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HUDSON OWNER MANUAL 33
CARBURETOR AND FUEL SYSTEM
FUEL RECOMMENDATIONS
The engine of your Hudson car is designed to give good performance and economy
with regular grades of gasoline. One of the most important factors in getting the most out
of the fuels available, is correct ignition timing.
The lower grades of gasoline should be avoided in the present day high compression
engines, as they tend to cause "pinging" under normal load conditions, which requires that
the spark be retarded for quieter operation. Retarding the spark naturally affects the
performance of the car, as well as economy of operation and, therefore, no saving in
operation is obtained. Also avoid the use of fuels which tend to gum up quickly as they
materially affect the operation of the engine.
Premium grades of fuel, such as Ethyl, which have a higher octane rating. permit the
use of a more advanced spark timing without knock or "pinging." this will result in
improved performance and economy. It should be remembered, however, that these extra
advantages cannot be obtained from this type of fuel unless the spark timing is advanced.
For information on "Ignition Timing" see pages 39 and 40.
FUEL ECONOMY
Gasoline mileage is the subject of considerable discussion among motorists. We hear
a good deal about the results obtained by certain owners which may cause others to
wonder how the claims are substantiated. Unless we understand the conditions under
which the figures were obtained, they mean very little to us.
There are many factors governing gasoline mileage, such as car speed, road conditions,
varying wind velocity, temperature changes, heavy traffic and frequent stops. All of these
conditions have a direct bearing on the gasoline mileage your car can give. There are,
however, a number of things you can do in driving to improve your gasoline mileage.
1. Avoid unnecessary acceleration of the engine.
2. Warm up the engine by letting it run idle for a few minutes when starting, to permit
the oil to circulate properly. This is especially important in cold weather.
CAUTION: Avoid racing the engine during the warm-up period.
3. Accelerate slowly.
4. Do not drive in low or second speed gears unnecessarily.
5. Maintain as nearly uniform speed as possible when driving in city traffic.
6. Avoid sudden and unnecessary stops.
7. Keep tires inflated to the recommended pressure.
8. Do not idle the engine unnecessarily.
9. Use engine oil of the proper viscosity.
10. Keep your car properly lubricated.