Okay well i just bought my 00 lexus gs 300,400. It ran great the first day and i was really happy with it. I filled it up at the gas station but with 87 on accident. I drove it for 3 hours and no problems. Last night i tried the pwr mode but for about 5 seconds before i decided i didnt care for it. I turned it off and parked the car. I went to the station maybe 15 minutes later and when i take off the car takes off fine with little bit of hesitation then dies between first and second gear. Before im going even 15 mph. I praked it home and in the morning i tried to drive it to work and it stalled in the same way but would not start at all, i had to get it towed. Sometime it will cut out and try to die then kick back on and go. I checked oil and it was low. I put fresh oil till full. Sounds better but doing the same thing.i put a octane booster in it thinking it was the gas but it wasnt. Someone pleaSe help me. I need this car.