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Old 07-29-2019, 09:06 PM   #5 (permalink)
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Chief - '06 Pontiac Grand Prix
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Originally Posted by Focused View Post

I changed the oil with synthetic 5W 40 Royal purple and put in a #2009 M&K filter, right after I bought it. On the zx2 thread, someone said that we should be using mobile 0W 20, I will try that in 4.5K miles or so.
5W20 and 5K are the specs for oil in your vehicle, for normal operation.

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