it smells a little different than reg oil and is more slippery than a car dealer so i am going to use it in pontiac g5 and hopefully engine doesnt fall apart. I did not buy it for enviroment i bought cuz of 13$ rebate haha and i wish it was energy conserving but it isnt for some reason. If anyone knows why it is not EC let me know. SM oil is rugged so i hope they know what they are doing.