The 2018 Toyota Sienna 3.5 liter engine has an oil capacity of 5.8 quarts as stated by the manufacturer. The recommended oil for the car is SAE 0w-20 full synthetic and You should replace the engine oil and filter every 3000 - 5000 to ensure Your engine is at its peak performance. Not changing the oil causes the oil to lose its viscosity and will not properly lubricate the internal parts of the engine such as the pistons and cylinders. The price for oil will range from $5 - $10 per quart depending on if its conventional or synthetic and the brand/quality of the oil. Make sure if You are replacing oil that You also replace the oil filter as well. The oil change is one of the most important service intervals to keep up on and that is why they have the oil light in the vehicle now to remind You.
Joshua C.
August 29, 2019
Whether the 2018 Toyota Sienna trim is an eight passenger version or a seven passenger version, the trim has the same type of oil throughout all its different versions. The L, the LE, the Limited, the Limited Premium, the SE, the XLE and the XLE Premium all use 0w-20 oil. Similarly, since these Sienna trims all have the same 3.5 liter engine, they all use the same amount of oil at 5.8 quarts. The models that come with an "Auto Access" designation upgrade still share the same oil type.
Charles
April 7, 2021
5.8 quarts
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