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Any worry if dealer switched from 0W-40 to 5W-30?

2.0t_convert

Ready to race!
Had the 30,000 mile service today and didn't inspect close at the time but now I notice the print sheet states 5W-30 Castrol was used. Castrol sticker on window as well. But during the 20,000 service it was 0W-40 oil used. Two different dealers.

I did a google search and found some back and forth talk about both being ok to us but nothing on which would be better.

Is there anything to worry about with switching from one to the other or am I just paranoid?
 

DaveSTR

Go Kart Champion
Zero worry. 5-30 used here in Germany with all the hot, cold and HIGH speed driving going on and zero issues. Use a VW approved oil and move on and enjoy the ride.
 
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Red2011GTI

Go Kart Champion
0W - 40 would be better for Summer IMO but in CT you don't get the extreme heat we do in Phoenix so I'd say no worries.
 
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