Keep your money!
Just to let you guys know, thats the biggest scam/waste of money. Theory is that nitrogen molecules are fatter than traditional air molecules and resist seeping through tires quickly, which maintains pressure for longer. Fact, the molecular weight of outside air is about 0.92 and the molecular weight if nitrogen is 0.98. This is not a substantial enough difference to really make a noticable impact on mileage or how long your tires stay properly inflated. KEEP YOUR MONEY!!!!!!
__________________
2006 A4 3.2 Quattro S Line
|