Motor Oil Weight

[Gen3caMLos]

Hello Everyone,
I just took my Gen 3 to get a Oil Change and the Mechanic used 5W30. At the moment I thought this seemed weird, but I trusted him, b/c I really don't know much about oil, only that I use Sythetic. When I got home and looked through my car records, I saw that the car had previously taken 10W30. Is this change in weights okay?? I don't really know much about the weights, all I know is that I was looking through the internet and it says that a lighter weight is ideal, especially in the cold, because it's less weight on the motor. I have a 2.2 I4. Am I using the right oil? Thanks

[EKam]

5W30 is fine, most shops will put that in for you in the Winter due to the weather. You can switch it back to 10W30 in the Spring.

[toysolara2001]

I am just wondering, but what is the difference between the different grades of oil.

[STR8PYP]

5W30 assists in colder weather starts. 10W30 and 5W30 are identical at running temperature. That's the only notable difference.

SC

[Ken4]

Not all synthetics are true synthetics:

http://pub27.bravenet.com/faq/show.php?usernum=2240725418&password=&catid=1441&a ction=showcat