My Rav 4 / 177 hp / 4 years old / 31000 km has VSC/ engine problem / 5. Injection nozzle has been renewed and announced that the expensive repairs will only come, as I only drive short distances and p.a. 8.ooo km. Another workshop recommended me to push out the expected expensive repairs ( Turbocharger etc.) by driving 100 km at a time each month (of which 50 km to warm up and 5 km with 5000 rpm in high gear for free burning in the loader. Does anyone have any experience? White jem and reasonable alternatives?