There is no definitive answer to this question as different drivers may have different opinions on what is the best fuel for their car. However, most experts seem to agree that a Lexus RX350 does not require premium gasoline. In fact, using regular gasoline may even be more beneficial for the car in the long run.
While the RX350 may need premium gasoline in some situations, drivers can usually get away with using regular fuel. The car’s computer system is designed to adjust the engine settings depending on whether premium or regular gas is used. For example, when using premium gasoline, the timing system for certain cylinders will be changed to allow full use of the fuel. However, when regular gasoline is used, the car’s computer will shift to a less aggressive timing setting in order to save fuel.
This means that drivers can usually use the cheaper regular gasoline without experiencing any negative effects on their car. Of course, if you do notice any problems with your RX350 after using regular gas, then you may want to go back to using premium gasoline as a precaution. If you do not experience any problems with the engine after switching, then there is no need for you to use premium gasoline.
Why does lexus rx350 require premium gas
It really depends on your engine’s compression ratio. Most cars will run fine on 87 octanes, but modern engines are designed to use the higher octanes available today. With a high enough compression ratio, you can actually damage the pistons if you run too low of an octane rating. This is because when combustion occurs, there is a lot of force exerted on the piston’s. If you have an engine with a high enough compression ratio, then this will actually warp your pistons or cause them to lock up completely.

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