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Originally Posted by HummerMann
My 2007 SUT has 132,000 miles on it, mostly highway miles, but some towing too, and I change the oil every 5,000 miles with Mobil 1 synthetic. It uses about a half quart every 5000 miles.
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That what I thought mine was going also. Then I added a half court half way through the oil change and now 3k later it's down again.
It's almost like I don't go through any oil unless it's topped off to full capacity.
I'm going to pay attention a bit more closely this time. I went ahead and got Royal purple. I couldn't stomach the conventional just yet. Plus, RP just came out with a high mileage oil I might try next time around. Although the way the motor has been maintained I don't see why it would need a high mileage motor.