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Mobil Clean
Any Reason to Switch Off a Semi-Synthetic Motor Oil in a Higher Mileage Truck?
I have a 2004 Ford E-150 with a 4.6 and 205,000 miles on it. I have changed my oil and filter every 4,000 miles with the same 5W-20 semi-synthetic oil. Should I stay with a semi-synthetic or would I b...
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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