Hey guys I have a 2006 viper went to fill up at a local She'll gas station. I hit the 93 octane button and start fueling. Didn't really notice until looked at the price and saw $1.95.. Well the premium was at 2.40. So I stopped fueling and there was about 3 Gallons of 87 that pump into the car. I tried it again and after you select 93 itll go straight to 87.. I drove around town for about 30 minutes trying to burn this fuel, just cruise in 3rd gear under 3k rpm, no hard accelerating. Will this harm My motor??!