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5W30
I have a 1992 Chevy K1500 with a 5.7 Liter in it. The Chilton's manual says 5W30 is recommended. Is this okay in all weather conditions? I was told in the past to use 10W30 in Winter and 10W40 in Summer. Doing a little research, this doesn't seem right at all.- truckmandan
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- Forum: Street Chat / Timeslips
