best oil for 2.5L tbi ?

1990 plymouth sundance 2.5L non-turbo with a leaky valve cover gasket

what oil should I use? Prev. owner used 5w30, but is synth recommended?
thanks

-sachin

 

Quality 10W30.

Synthetic is not necessary.

DS

 

First, replace the valve cover gasket or RTV sealant, whichever it has.

I don't know if 5W-30 was recommended back in 1990 or not. Check your
owner's manual and use whatever it recommends. I'd have thought it
would be 10W-30, but it may be 5W, I just don't know.

If you don't live in a really cold or hot climate, then the advantages
of synthetic are minimal. I use it because I live where the winter
temps are often below zero and it really aids the cold cranking. I also
change my oil at 5,000 miles rather than 3,000 and like the extra margin
tha synthetic gives. However, if you change your oil every 3,000 you
will do fine with any top quality conventional oil ... I was partial to
Castrol before I started using synthetic.


Matt

 

Chevron Supreme 10w30. Cheap and has a robust additive package including
Molybedum! Also contains Group II+ basestocks! Get it at Wal-Mart