If your engine is experiencing a drop in fuel economy, you are likely doing everything you can to pinpoint and repair the cause, because a tank of gas is not as cheap as it used to be. If you are getting fewer miles to the gallon, have you considered replacing your Lexus GS300 oxygen sensor? Part of a network of sensors that measures the oxygen content of your exhaust, the GS300 oxygen sensor is located near your exhaust manifold. It is responsible for monitoring the oxygen level of the exhaust leaving your cylinders, and sending that information to your vehicle’s onboard computer hundreds of times per minute.

Your vehicle uses this information to determine how much fuel should be injected into your cylinders, and strives for an oxygen to fuel ratio of 14.7 to 1. When there are problems with your GS300 oxygen sensor, your vehicle has to guess how much oxygen your exhaust contains, and it will end up injecting too much fuel rather than too little, because not enough fuel can damage your engine.

Therefore, a faulty oxygen sensor wastes gas. Over time, this excess fuel running through your exhaust system can damage your catalytic converter, which will cost you even more money in repairs. You should replace your Lexus GS300 oxygen sensor at least every 100,000 miles, and you may want to install a new one every time you have exhaust work done. Find the GS300 oxygen sensor you need right here in our extensive online catalogue, and we will ship it right to your door in no time.Restore your engine’s fuel efficiency with a new, high-quality oxygen sensor for less.