Originally Posted by GSGenesis

Alright well since there's an open topic on gasoline, I might as well post this here, Issue: I run 91 Gasoline always, I lent my mother my GS300 k, a few times actually, and when she fueled up, she filled it with 89, she returns the car to me with a cell light lol... I asked her simply what had possibly happened, anything I should be aware of? Then I noticed the fuel, so I drove through it, didn't really mean to intentionally, just didn't have time to diagnose the light, fueled up again but with 91, dam light turned off. Same thing happened again! Let her use it, and she fuels up again with the same garbage from arco, light comes on, that's when I thought the whole fuel thing, anyhow sure enough, light turns off when I put 91 back in. I just need to diagnose the code and see what the hell it may have to say. It HAS TO be this fuel, there's no way it's just coinsedence that it just happens to come on when 89 arco donkey **** is put into it. Bizarre huh?