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In the 2018 Toyota Tundra, it's recommended to use 8.5 quarts of high-quality oil to keep the engine running smoothly. It's important to have good oil, as running into issues with this fluid is inevitable. Using bad oil can lead to engine failure, and you might notice a foul burning smell, which requires immediate attention to prevent potential accidents. Additionally, engine knocking noises and poor gas mileage can be indicators of oil problems. It's necessary to change the oil every 5,000 to 10,000 miles to avoid engine issues. Failure to do so can result in serious engine problems.
The 2018 Toyota Tundra is available with either a 4.6 liter engine or a 5.7 liter engine. Typically, the engine size affects the amount of oil used, but in the case of the Tundra, both engines require the same amount of oil. Regardless of the engine size, all versions of the Toyota Tundra require 8.5 quarts of oil.