oil viscosity DODGE MONACO 1965 1.G Owners Manual

ENGINE OIL REQUIREMENTS
FIRST OIL CHANGE. The engine oil in­stalled in your car's engine at time of assem­bly is h igh quality, "For Service MS" oil and
need not be removed until the first scheduled
oil change_ "Break-in" or "Flush-type" oils are no longer required in you r car's advanced­
design engine and m ust be avoided.
WHEN TO ADD OIL It is not unusual for
a new engine to use a certain amount of engine oil during the break-in period. Check
oil level during each stop for gasoline. Add oil only when level on dipstick is al or below
the "ADD OIL" mark.
WHEN TO CHANGE OIL Regul.,. 011 changes .,.e required to provide proper engine operation.
Highway Driving, combined with some short
trip, slower speed operations extends the 38
effectiveness of the engine oil and permits you to change 011 at 4,000 miles Intervals.
Short Trips (less than 10 miles) and slow speeds, such as to the store, school, work
etc. and home again before the engine warms up, causes harmful condensation and sludge formation. This is typical of car operation in
city traffic. Driving under these conditions re­
quires that you change 011 every 3 months regardless of mileage.
Severe Operating Conditions, such as fre­
quent driving on dusty roads, or in sandy geographic areas, or unusually short trip
driving in cold weather may reasonably require 011 changes more frequently than
every three months. Under these conditions, consult and follow the advice of any Author­ized Chrysler Motors Corporation Dealer's
Service Manager.
Shaded area covers region where minimum tem­peratures are consistently below + 10"F. during
winter months.
RE MMENDED ENGINE OIL GRADE
Multigrade Oils: SAE 20W-40 Suitable when temperatures are co nsistently abovl! + 32°F. SAE 10W·30 Suitable year-round for most parts of the United States; may be used where temperatures occasionally drop as low as -10°F . SAE 5W·20 Recommended where minimu m temperatures are consistently below + 10°F . durin g winter months, see map. Low viscosity o ils make en~ine starting easier in cold weather. Modern SAE 5W-20 grade oils may be safely used when minimum temperatures are expected to be consistently below + 10°F. Single Grade Oils. SAE 30 When temperature ranges averag e co nsistently above 32°F . SAE lOW When temperature ranges average between + 32° F . and -10°F .