Just picked up 4 quarts of the 10w-30 Supertech high mileage oil for 1.44/quart (new bottle), I figured it was worth a try in an older beater of mine. Supertech's high mileage 10w-30 was the only high mileage oil in this grade to have the energy concerving label on the starburst all the others are just blank, is it less thick than other high mileage 10w-30's? This oil is only like 20 cents more a quart than regular supertech oil so I really wonder if it's really all that different.