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With the increase in the market's requirement level and the incited dispute for the consumers, the automotive industry has given special attention to the customer's perceived quality. One of the aspects related to the quality perception is the "new car's smell." The trend, shown by the market, is to control this characteristic in a subjective way, by means of especially trained panel. This paper aims at analyzing this question by another point of view, leaving the subjectivity and searching to characterize the new car's smell in an analytical and concrete way. It was shown that the main VOCs contained in a poly(vinyl chloride) matrix are 2-butanone, acetic acid ethyl ester, toluene, acetic acid butyl ester, cyclohexanone and 1-hydroxycumene. The evaporation rate of the VOCs was studied and its impact in atmospheric global composition evaluated.

The knowledge of information regarding the biodiesel's oxidative stability can prevent problems with handling, transport, storage and use of this fuel. The present article studies the oxidative behavior of samples of biodiesel produced by methyl route from soybean, rapeseed, sunflower and corn oils and lard through adaptation of the methodology of evaluation of the oxidation stability of gasoline D525 (Induction Period) and determination of the acid number. Moreover, this work presents a comparative thermal study between the vegetal oil samples and bathes, used as raw materials, and its respective products of the transesterification.