Does Anyone know of any shop in Las Vegas that does Walnut blasting to clean carbon off the intake valves on an IS? If so, how much does this service run?
any other PROVEN alternatives to clean carbon off the intake valves?? And, NO seafoam isn't an option since it doesn't work too well and can cause chucks of carbon to fall into the combustion chamber and cause havoc....YES I've seen this happen on a friend's car.