I recently brought in my R at the dealer and brought my own case of Mobile 1 Synthetic 10W 30 from Costco. I did not want to get charged $50.00 again when I can buy it for $28.00 at Costco. So anyway, I brought my R to the dealer and he told me the case of oil was not enough and that the R takes 6 1/2 quarts of oil. Can anyone verify this? So the 1/2 quart I was missing, they tossed it in for free. I had to take my R to keep up with the warrenty service since at the time, my 2004 R has only 7458 miles on it. On a side note, how often should the pollen filter be changed? Thanks.