5W30 is what Saturn recommends year round. The lighter (compared to 10W30)
oil provides for higher fuel efficiency. I prefer to use 5W30 in Winter and
the 10W30 during spring/summer/fall in all my vehicles since 10W30 provides
superior high temperature lubrication and cold starting is not an issue for
me during the rest of the year.

Sounds like the car is in good shape. Ask to get the maintenance records
and then you will know for sure. Good luck!

Bob

"Paul" > wrote in message
. ..
> Thanks for the information's. ... I will check the oil and will stick to
> recommended oil from Saturn (I think 10W30). I must say that this
newsgroup
> has been helpful to me to acquire some level of knowledge about Saturn
> engine and I am appreciated.
>