We have been saying gas prices will go up & up. The imaginary good old days are over. Auto-Rx your engine & transmission then get on Auto-Rx Maintenance Plan. Use a good mineral oil. Save $$$
http://www.auto-rx.com/how-to-easily-increase-efficiency-in-your-car-engine/
Be careful when you buy motor oil - not all meet modern engine standards.
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The same is true for oil filters. You typically only get what you pay for.