JAP CAR FAN

Hi there, I just joind the TOC few days back. I'm in Sydney, driving an Altise 2011 & Estima 2004 imported from Japan. JAP CAR FAN

Hi there , I am JAP CAR FAN. New member. I just bought an Estima 2004 3.0 model ( Frame MCR30 with 1MZ-FE motor). Could somebody please advice what is the recomended fuel type for this? Unleaded 91 or 95 ? Initially I pumped 91 E10 from caltex then noted the engine was underperforming. Now I switched to Unleaded 95 & noted engine is generating more heat than earlier. Also plesae let me know the specifications of Radiator cap type. Thanking in advance. JAP CAR FAN