Tuesday, September 1, 2009

RON95 or RON 97???

Well, 31 August 2009 was the 52 Merdeka for Malaysia, and while all nations were busy celebrating for Merdeka, government announced the price hike for RON 97 fuel price to RM2.05 and newly introduced RON 95 to RM1.80, as compared before Merdeka the price was RM1.80 and RM1.75 respectively. I think mostly Malaysian will go for the cheaper one after the price hike but does this RON 95 fuel is really suitable for our engine combustion??

RON stands for Research Octane Number, and it is the most common type of Octane Rating. Octane Rating is a measure of the resistance of gasoline and other fuels to detonation (engine knocking) in spark-ignition internal combustion engines. Meaning that high performance engines typically have higher compression ratios and are therefore more prone to detonation, thus they require higher octane fuel. Knocking occurs when the fuel-air mixture in the cylinder explodes instead of burning in a controlled way. This shockwave moves within the combustion chamber, and creates a metallic "pinging".

For Perodua users, RON 95 is safe to use as the manufacturer already stated that on their website. Kindy click on the link below to read through:

However, there are some issues on older Proton car as they acknowledge some of the old carburetor cars may experience knocking depending on the condition of the engine and needs to go into the Proton service center to adjust the engine’s ignition timing. However, Proton’s Campro engines and most of the 16 valve Mitsubishi engines installed in Protons (4G92 in Wira 1.6 and 4G93 in Satria GTi) run on a minimum of RON95.