Hi I have a 2008 gmc sierra 1500 5.3L, I live in el centro ca, the weather here is really hot like it gets to 115 degrees out here, and I was wondering is it ok to use 10-30w synthetic engine oil, can this type of weather affect the oil I want to use. Thank you for your time
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Tuesday, June 18th, 2013 AT 1:02 PM