With a combined 25 MPG, the 2022 Lexus IS 300 2.0L isn’t the most fuel-efficient car, but it’s respectable for a stylish, rear-wheel-drive sport sedan. The IS 300 2.0L is for someone who values Lexus refinement and distinctive styling over saving gas. This isn’t a basic car; it’s a statement. Luxury and driving experience are the priorities, and the 2.0L engine makes the IS lineup more affordable.

City and highway performance

The EPA estimates the IS 300 2.0L will get 21 MPG in the city and 31 MPG on the highway. The city figure reflects typical stop-and-go driving, where the engine is constantly accelerating and decelerating. The 31 MPG highway rating demonstrates the engine’s ability to cruise efficiently at steady speeds. Drivers who spend more time on the open road can expect results closer to the highway figure, while drivers in urban environments might find their average fuel economy closer to the city estimate, or even a little below.

Annual fuel cost

The EPA says the annual fuel cost for the 2022 Lexus IS 300 2.0L is $2,300. This is based on driving 15,000 miles per year, using a national average fuel price. Your fuel costs will vary based on how you drive, local fuel prices, and the grade of fuel used, although the IS 300 2.0L doesn’t require premium fuel, it’s recommended for best performance. If you drive fewer miles or fuel prices are lower in your area, your actual fuel cost will be less. More miles or higher fuel prices mean higher costs.

Real-world expectations

EPA estimates are a useful guide, but real-world fuel economy often differs. Driving style, traffic, and even tire pressure can affect your MPG. Hard acceleration and braking will reduce efficiency, as will carrying extra weight. Owners who want better fuel efficiency can easily meet or slightly exceed the EPA’s combined figure by driving carefully. Spirited driving may result in fuel economy closer to the city estimate, or lower.

How it compares

The IS 300 2.0L is in a competitive class, so comparing its fuel economy is important. The BMW 330i, a direct competitor, gets a combined 28 MPG. The Mercedes-Benz C 300 offers a combined 25 MPG for the rear-wheel-drive version and 26 MPG for the 4Matic all-wheel-drive model. The Acura TLX gets 25 MPG combined in its base form, matching the IS 300’s number. The MPG differences among these cars might not matter to most buyers, who may care more about brand, styling, and features than small fuel savings.

Tips to Maximize Efficiency

Use the IS 300’s drive modes. “Eco” mode will adjust the throttle and transmission to prioritize fuel efficiency over performance. This is helpful in city driving or on the highway.

Keep your tires properly inflated. Low tire pressure increases rolling resistance, making the engine work harder and burn more fuel. Check your tire pressure often and inflate them to the recommended level on the sticker inside the driver’s side doorjamb.

Avoid speeding up and braking aggressively. Smooth and consistent driving will improve fuel economy significantly. Watch traffic and avoid hard stops or fast starts.

Limit idling. If you’re stopped for more than a minute, turn off the engine. Modern engines restart quickly, and idling wastes fuel.

Follow the maintenance schedule. Regular oil changes, air filter replacements, and other maintenance ensure your engine runs well. A well-maintained engine will always be more fuel-efficient.

See all Lexus fuel economy data, or deep-dive into IS MPG across all years.