[QUOTE=gferoz;2694703]i. Is 90 RON required for this 1.8L engine ? RON means fuel quality the better fuel quality more efficient fuel burning. so i dont think your point is valid good fuel quality is healthy for all type of engines. hi-octane is i think 93 RONs.
ii. If you have a good budget for engine oil, you can go for monolec brand - the technologically most advanced. monolec actually field-proven to reduce wear (increase engine life), reduce friction(24.2%), and nearly eliminate the tiny "siezures" that normally occur whenever machines move. MOBIL1 5W-50 is the best oil available in the market, never heard of monolec brand. [/QUOTE]