Petrol Direct Injection gives the same issues as the diesel engine. There could be some fuel deposits which are circulated around the engine through the EGR valve and build up on the inlet valves. Some models can suffer from poor idle and reduced power in as little as 15k miles if low speed trips are made around town and if poor quality fuels are used. Revive will clean these valve stems and seat surfaces solving the issue.
A petrol direct injection engine does not have to have a turbo for this to work. but there are obvious benefits from cleaning the intake and exhaust path with Revive in all 4 stroke engines in order to prevent build ups of carbon material which can cause efficiency and performance issues in the future.