Breaking·in Period - Chevrolet 1957 Owner's Manual

Operating
Instructions
BREAKING·IN PERIOD
During your first few hundred miles of driving, you can, by observing
a few simple precautions, contribule greatly to a longer life for your
cor and odd much
10 ils
future performance and economy of operation .
Sound design and precision manufacturing methods will permit you 10
operate your new Chevrolet in a normal manner from ils first mile on
without following a formal "break-in" schedule. However, a few
simple precautions during the firs! few hundred miles of driving will
assure proper "mating" of all moving parIs in ,he engine, transmission
and reafoxle.
II
is
recommended that your speed for the first 500 miles be confined
10
a moximum of
60 M.P.H.,
but do
nol
drive
for
extended periods
at
anyone conslonl speed, either slow or fosl. During this period ovoid
full throttle "jock rabbit" starts and quick, abrupt stops.
After 500 miles your Chevrolet may be coiled upon to deliver any
speed you desire, within local regulations, for as long as yov wish.
It is best, however, to always drive 01 a reasonable speed until the
engine has warmed up.
Be particularly careful to maintain the proper oil level in the crankcase.
When delivered to you, your Chevrolet engine is filled with a light
body, heavy duty oil containing an additive to prevent scuffing of the
moHog pmiS.
USE THIS OIL DURING ONLY THE FIRST
1()()()
MILES
OF DRIVING. Check the oil level frequently.
If,
during this period, it
becomes necessary to add oil, use one 01 the "light body" oils de-
scribed on page 25. At the end of 1000 miles, drain the oil from the
engine (when hot) and replace the oil filter element (if so equipped)
and refill with an oil of the viscosity number and type suggested on
page 25. Use of the proper engine oil is of greal importance in
assuring maximum performance and economy.
The rear axle of your Chevrolet is also filled with a special lubricant
and should be drained and refilled, see page 29, after the first 1000
miles of driving.
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