Results
According to an EU , in 2018, Portugal took 108 fuel samples and the following irregularities were observed:
•21 samples of RON 95 E5 and 2 samples of RON 98 E10 did not meet their respective minimum Research Octane Number (RON) limit
•26 samples of RON 95 E5 and 4 samples of RON 98 E10 did not reach their respective minimum Motor Octane Number (MON) requirement
•3 samples of RON 95 E5 and 2 samples of RON 98 E10 exceeded the vapor pressure limit
•1 sample of RON 95 E5 exceeded the aromatics limit
•1 sample of RON 95 E5 had oxygen content higher than the legislative limit