Install 10w30 until you find out for sure. If you had an owner's manual you would have your answer. Dealer, Salvage Yard, E-Bay, and many on-line sites are sources. One good site is: http://www.samarins.com/maintenance/manual.html
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Brandon:
I have a 1990 Chrysler New Yorker 3.3L V6 and my manual says 5w30 or 10w30.
5w30
The 3.0L V6 is a Mitsubishi engine, all others are Chrysler.
On a 1990 Chrysler New Yorker, the starter relay is built into the starter. The starter is located on the front of the engine, behind the engine mount.
Green
Front of the engine, behind the engine mount.
Chrysler New Yorker was created in 1939.
There is no other direct replacement.
5w30
No the engine will not interchange.
It is between the engine and the front bumper.
The engine computer is the voltage regulator.
5w30 or 10w30