oil

Ready to change oil in my 2009 Sedona that I bought w/ 150,000 miles last year .... The cap on the van says to use 5W 20 in it ... but the manual says 5W 30 ... Any experiences that would make a difference ... I live in winter country (USA) where it does get to 0 (F) or below & up to 90 (F)...

Hi, I see lots of threads about oil overfill. Our car was serviced by Kia dealer in November and we checked oil recently and it was 1-2cm above the max line. We contacted the dealer 11 days ago but yet to receive a response. I am sure when I contact dealer again they will tell me not to worry...