 | Date | Question |  | Answer |
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 | 09/09/2008 | |  | You can stay with the semi-synthetic and use Mobil Clean 7500 which provides guaranteed protection for 7,500 miles or six months, whichever comes first. Obviously, a full synthetic like Mobil 1 High ... |
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 | 07/28/2008 | |  | No, these two products have separate formulations. |
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 | 11/18/2007 | |  | Switching back to Mobil Clean High Mileage will not hurt. Our high mileage products will provide additional protection to help prevent leaks which could be more frequent in higher mileage engines. |
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 | 06/09/2005 | |  | We recommend a maximum of six months between oil changes for Mobil Clean 5000, Mobil Clean High Mileage and Mobil Clean 7500. On Mobil 1 Extended Performance, we recommend a maximum of one year betwee... |
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