I can't drive my car because of this sludge in the engine problem. I'm researching the issue, and find out Toyota settled a lawsuit to fixed this issue back in 2007 that covered the year of my car. I purchased my car from Toyota in 2006. I never received any notification back then even though I'm just having issues now. If this was preventable then I should have been notified. I'm currently without transportation because the mechanic told me to park my car to trade it in.