Roadspike

Hi, I currently have a IS250 that I like a lot but they seem to suffer from carbon problems. I walnut blast my valves and run premium fuel. Anyways I was in the dealer the other day for a coolant flush and really liked the IS300 but I want to make sure it doesn't also suffer from this annoying carbon deposit problem. Is the 300 a direct injection motor also? Does it have carbon issues?

EZZ

No it does not. The Is300 and 350 has both port and direct injection so carbon buildup is not an issue.