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Originally Posted by SLK280DS  I just ordered the green filters for my SLK 280. I track my gas mileage using a spreadsheet since I first bought the car, so I should be able to tell if the new filters give better gas mileage or not. I'll post my results after a few months. |
Your results will be interesting. Considering you've tracked your mileage since new, your figures should be very accurate. Keep us posted on the results.