Quote:
Originally posted by 98gsr
5W30 is for hot weathers and 10W30 is for cold weather. i use 10W30 all year around with Mobile 1 = $5.00 each and Mobile 1 filters = $12.00 each. 
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i thought that was the other way around, i thought the oil's supposed to be thicker in the summer so it doesnt break down so fast? isnt that right?