i just recently bought a 2001 RVR 1834cc,my question is,in Jamaica we only have 87 and 90 octane fuel, i use the higher available fuel,what problem may i have,because it seems with a GDI engine my octane level should be higher. What should i do to prevent a problem. I have this car about 3 months,its 40,000km and i am enjoying it,thanks.