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Q: Can synthetic motor oil be used in a 2003 GM duramax diesel?
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Where is the fuel pump on a 2003 duramax diesel


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Since you didn't list the engine as being a Duramax. It should be the bolt in the back of the Oil Pan right next to the filter. Good Luck and Remember.Change Your Mind, Not Your Oil.Use the First In Synthetic Motor Oil's.See My Bio For Information & Contact Details.


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