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2004 Mazda RX-8
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EPA MPG Premium Gasoline 18 Combined City/Highway MPG 16 City 22 Highway 5.6 gallons/100 miles
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Fuel economy of the 2004 Mazda RX-8
https://www.fueleconomy.gov › feg › noframes
Since drivers must keep the engine at high RPM for maximum performance, Automobile.com says that “the obvious penalty hit my wallet when it came time to top up the go-go juice.” AutoWeek describes the RX-8 as having an “unquenchable thirst” that is “not that eco-friendly”. The RX-8 requires premium unleaded …
For a turbocharged rotary engine, Prather recommends 91 octane or higher fuel. “For turbo use,” he adds, “it’s imperative to be aware of your timing and keep that lower for boost use.” “Race fuels are generally more refined than pump gasoline and tend to burn cleaner , with less soot residue.”
UPDATE July 11, 2021. Mazda UK was asked for their position on the use of E10 fuel in RX-8 and they were quick to respond with the official statement below. In summary, the important point is, “E10 petrol is approved for all models with petrol engines introduced in and after 2002“.
Wankel rotary engines are designed to run on pretty much every fuel imaginable, from alcohol to diesel to gasoline, kerosene, natural gas and even hydrogen.
If you normally fill up with 87 octane gasoline and accidentally put in a higher octane blend (e.g. 91, 92 or 93), don’t worry. You actually fill your car or truck with a different blend of gasoline, which means this will burn differently in your engine.
Mazda RX8’s engine problems
The main problem, reports Jalopnik, is that the RX8’s ‘Renesis’ gyro was not built quite like the RX7’s 13B. The Renesis motor casing is not as strong and can warp over time. In addition, Mazda had to modify the Wankel engine’s exhaust to comply with emissions.
Mazda RX-8: 15.9 to 16.9 gallons. Scroll down for the exact size of your model year. 2020 Toyota Corolla XLE CVT (midsize sedan): 13.2 gallons (50 liters). 2020 Jeep Cherokee Limited 4×4 (SUV): 15.8 gallons (59.8 liters).
The higher bioethanol content of E10 petrol is corrosive to rubber parts, gaskets, metals and plastics, causing engine damage, which can loosen deposits in older engines and fuel systems and cause clogs. It should only be used with expert advice, which means almost never.
According to new research, many popular family cars are unable to use a fuel that is being introduced at service stations to reduce CO2 emissions. Some Volkswagen, Ford and Nissan vehicles are among those that are not compatible with E10 petrol, which is designed to be less harmful to the environment.
As with any engine, if you take the time to look after it properly, it will last longer than usual, but that can mean 80,000 miles or less.
The only downside of the RX-8 is its fuel consumption, which is 12.8 L/100 km in the city and 9.2 on the highway. That’s not bad, but with 8.2 L/100 km on the highway and 11.9 in the city, the much more powerful 350Z from Nissan is easy on the wallet.
Since the RX-8 hasn’t changed much over its seven year life, we recommend a 2010 or newer model due to the improvements to the engine that greatly reduce bumps and flooding, and most importantly oil consumption . If you are on a budget and looking at an older model, try to find a low mileage car first hand.
These apex seals also typically don’t last long before they need to be replaced. Rebuilding a Wankel at 80,000-100,000 miles is typical and earlier than most piston engines require such exhausting work.