Everyone uses Premium gas with their TL?

The mileage drops because when you use 87 or 89 octane gas in the TL the engine is getting slowly screwed up. But if you want to save on gas prices then who cares about the engine right ?<br><br>The octane rating of the gas determines how much the gas can be compressed before it ignites in the engine cylinders. The higher the octane rating the more it can be compressed before igniting it.<br><br>Cars (like our TL) which use only premium gas (minimum 91 octane) compress the gas more than the cars using regular gas (87 or 89 octane rating). So what happens when you put 87 or 89 octane in the TL well ... the engine will try and compress it to a level thinking that it is a minimum 91 octane ... but before it finishes compressing the gas to that level the gas ignites (premature ignition). The engine and the cylinders are not ready for this. This damages the cylinders, piston rings and the other parts of the engine.<br><br>For some of you this may be too technical but I just want to say that if you are using anything other than premium gas for the TL then you are abusing your engine.<br><br>So friends it is your choice ... Acura knew very well what it was saying when it gave the label PREMIUM UNLEADED GAS ONLY for the TL.

I always use premium gas for my TL. Lesser gas may cause knocking and may screw up your engine. It's a $30k car.

thanks.. i was just checking.