oh yes, I also get the burnt rubber notes in some Indonesian oils i have tried. Petroleum / dieselly notes i get in some Indian oils . For thai oils/ from crassna , which have the petroleum notes !!, the distillation process is "tweaked "/ according to the factory i talk to , as their end buyers in the Mid east like these notes in the oil. ( just tried one the other day , opened with typical green notes for 2 hours and then had dieselly notes for the next 8) .