Vaughn MacKenzie
TDR MEMBER
It could be the gear oil making the smell Phil, I haven't ever tried burning it. I did try burning 4-6 quarts of used Amsoil in the tank of my '01 HO once and it hazed a light blue when rolling into the throttle even on a hot day with a fully warmed-up engine. I decided no more Amsoil in the tank after that.