Overheated aristo

From experience the older the model the higher the octane, with time and age the engine components gain wear and tear, slowing down performance and causing the car to run sluggish or not at it's best considering you keep up with your recommended service Sometimes people use lower grade gas to save a buck or two in the end you end you could end up with costly repairs from all that damage done from lower octane gas, the lower the octane the less the knock characteristic it has to protect it from premature detonation . Even with all the technology TOYOTA puts into there LEXUS Line there's still nothing better then a higher octane, for your vehicle,