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ERTW · 07-11-2012, 12:44 PM

The top half of the tire is spinning against airflow - this is what we don't want. The bottom half of the tire is spinning with airflow - so there's little to no gain. Hth

07-11-2012, 12:44 PM	#59 (permalink)
ERTW EcoModding Apprentice Join Date: Jan 2012 Location: Toronto Posts: 130 Bu - '08 Chevrolet Malibu LS 90 day: 32.29 mpg (US) Thanks: 52 Thanked 73 Times in 36 Posts	The top half of the tire is spinning against airflow - this is what we don't want. The bottom half of the tire is spinning with airflow - so there's little to no gain. Hth