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Old 11-17-2006, 10:06 AM
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silverado122775 silverado122775 is offline
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Re: Cold start problems

You may want to use thiner oil.. When your engine is cold that oil is much like sludge as is harder to move around and can cause rough idling. use 5w30 if you are not already.
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2000 Silverado Z71, 5.3L, K&N GenII Air Intake, Y-pipe Exhaust (no muffler), Bosch Platnium +4 plugs, 242k miles and still running.
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