I drove down to Lovecraft Biofuels today to get my fuel filter changed. I've driven for 7.5 months on the original filter and haven't needed to change it yet. I probably could have driven longer on it, but the filter canister is deep black, and if it gets too clogged up, the fuel supply slows down and the car loses power. I don't want that to happen! It took all of 10 minutes to get the filter changed and sign the credit card receipt.