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The oil pump is located on the bottom of the 2003 Silhouette engine. The oil pan has to be removed to get to it.
Bottom of oil pan.
4.5 Quarts of oil.
depending on your mileage and wear, anything from 10w30 to 10w40
433$ and 900$
blown head gasket much?
5 w30
4.5 quarts
i have a 91 sonoma with a 4.3 engine and it holds 5 quarts of oil wene you drain the pan completley and change the filter.
i put seafoam in gas tank and oil. also i use restore when i change my oil for engine restoration.
I pulled the dip out of a 95 and put it in my 89... Shouldn't be an issue.
10w30