I have used Rotella T6 for several years and never noticed any weird smell. I have not bought it in about 1 yr however. I use the T6 all the time in My Duramax and it is easy to find.

But the fruits of the spirit is love, joy, peace, patience, kindness, goodness,faithfulness, Gentleness and self control. Against such things there is no law. Galations 5: 22&23