The Lexus RX 350 takes unleaded gasoline with an octane rating of at least 87. This means that the vehicle does not require premium gasoline, which has a minimum octane rating of 91. However, using premium gasoline may provide better performance. It is always recommended to consult the owner’s manual for the manufacturer’s recommendation on the type of fuel to use in your vehicle [[9]].
Contents
- Does Lexus rc350 require premium gas?
- What happens if I put 89 instead of 87?
- What happens if I accidentally put 87 instead of 91?
- Do all Lexus RX require premium gas?
- Is regular gas OK for Lexus?
- What happens if you don’t put premium gas in a Lexus?
- Does Lexus RX 350 require premium gas?
- Which Lexus models take regular gas?
- Can you mix 87 and 91 gas?
- Which Lexus does not require premium gas?
Most Lexus models require you use at least 91 octane (premium) gasoline, while there are a few that can use 87 octane regular unleaded.
What happens if I put 89 instead of 87?
No Vehicles Need 89-Octane Fuel
At worst, it could cause the engine computer to slow the ignition timing a bit or adjust the fuel injection, potentially lowering fuel economy or performance.
What happens if I accidentally put 87 instead of 91?
If you put lower-octane fuel into your high-octane vehicle, whether by mistake or to save money on gas, you’ll probably notice the effects right away: things like poor fuel economy, reduced acceleration, and spark knock, which sounds like a high-pitched pinging or rattling noise.
Fuel Recommendations
According to Lexus standards, you need to use unleaded gas with an octane rating of 87 or higher. That means the RX doesn’t require premium gasoline, as the premium octane rating is 91.
Is regular gas OK for Lexus?
If you want to continue to enjoy the outstanding power and high-level efficiency offered in new Lexus models, you’ll want to utilize the recommended Lexus gas type. Some Lexus vehicles will require premium 91-octane fuel while others can use regular 87-octane fuel.
First, using too low of a grade of gas can lead to engine knocking, which can cause long-term damage to your engine. And second, using regular gas when you should use premium could void your warranty, meaning you would have to pay for any costly repairs out of your own pocket.
The engine in the 2023 Lexus RX 350 is a 2.4-liter turbocharged four-cylinder with pistons in the inline configuration. It generates 275 horsepower and 317 lb-ft of torque, making the run from zero to 60 mph in 7.3 seconds. Lexus designed this engine to run on premium gas with an octane rating of 91 or higher.
Which Lexus models take regular gas?
| Model Year | Model(s) | Recommended Minimum Octane Rating |
|---|---|---|
| 2021 | ES 250, ES 300h, ES 350, NX 300h, RX 350, UX 200, UX 250h | 87 |
| 2020 | GS 350, GS F, GX 460, IS 300, IS 350, LC 500, LC 500h, LS 500, LS 500h, LX 570, NX 300, RC 300, RC 350, RC F, RX 450h, RX 450hL | 91 |
| ES 300h, ES 350, NX 300h, RX 350, RX 350L, UX 200, UX 250h | 87 |
Can you mix 87 and 91 gas?
Is it bad to mix premium and regular gas? Well, not necessarily. If your car requires premium to run smoothly, but you aren’t able to find a station with premium gasoline, it won’t hurt to top off with regular gasoline. You do want to avoid running on regular gasoline for extended periods of time.
A luxury vehicle like Lexus may need premium fuel, but the answer to these questions is actually model-specific. Some vehicles, like the Lexus UX 250h, can utilize regular 87-octane fuel, whereas other models, like the 2022 Lexus GX, require premium 91-octane fuel, so the Lexus gas type depends on the model.
