Toyota 2009 Tundra Owner's Manual page 506

Engine oil consumption
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The amount of engine oil consumed depends on the oil viscosity, the
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quality of the oil and the way the vehicle is driven.
More oil is consumed under driving conditions such as high speeds and
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frequent acceleration and deceleration.
l A new engine consumes more oil.
When judging the amount of oil consumption, keep in mind that the oil
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may have become diluted, making it difficult to judge the true level accu-
rately.
After changing the engine oil (U.S.A. only)
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The oil change system should be reset. Perform the following procedures:
Turn the engine switch off with the trip meter A reading shown.
While pressing the trip meter reset button (→P. 188, 190), turn the
engine switch on.
Without multi-information display
Continue to press and hold the button until the trip meter displays
000000.
With multi-information display
Continue to press and hold the button until "MAINT REQD RESET
MODE COMPLETE" appears on the multi-information display.
CAUTION
Used engine oil
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Used engine oil contains potentially harmful contaminants which may
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cause skin disorders such as inflammation or skin cancer, so care should
be taken to avoid prolonged and repeated contact. To remove used engine
oil from your skin, wash thoroughly with soap and water.
Dispose of used oil and filters only in a safe and acceptable manner. Do
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not dispose of used oil and filters in household trash, in sewers or onto the
ground. Call your Toyota dealer, service station or auto parts store for
information concerning recycling or disposal.
Do not leave used engine oil within the reach of children.
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4-3. Do-it-yourself maintenance
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