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Thread: Which oil?
02-15-2013, 08:41 AM #11
my manual states 5w30 on my 2000 5.3L...... last year I moved to 10w30 to see if it was thick enough to slow some of the oil leaks I am having and it helped a little.
Synthetic is expensive and it would leak quicker so i would cost me allot more in the long haul.