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    Increased Oil Consumption After Switching to Valvoline Restore and Protect — What’s Going On?

    This is happening on my 2001 Corolla with 240K trouble-free miles... original owner, changed oil regularly over its 26 year lifetime with high quality full-synthetic (Mobil 1, Pennzoil), and consumption was about 1/2 qt between 5K oil change intervals in recent years. Then I decided to try...
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