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The transmission fluid on a Toyota Sienna should be changed every 100,000 miles. This helps to prolong the life of the transmission and improve performance.
Neither. I would recommend you change it every 8,000 miles.
never
Toyota recommends replacing the belt every 100,000 miles.
Recommended at every 25,000-30,000 miles
Every 80K miles, 100K max.
I just spoke with a Parts person at a local Toyota dealer. He told me that the 2004 Toyota Matrix requires Iridium spark plugs, which retails for about $12 at the dealership, and it should not need to be changed until 120,000 miles.
Should be changed every 60,000 miles. This is NOT an interference engine.
I think they recommend to change it each 160-180K miles.
The engine oil should be changed at least every 3,000 miles on a 1985 Toyota Tercel. An automobile this old should also have the oil and air filters changed at the same time for the motor to run move efficiently.
I have found that the filter should be changed around 90K in normal use and 60K in severe conditions. Toyota Tech.
If the engine has a timing belt, it should be changed around the 150K mark. If there is a timing chain, it does not have to be changed unless it is damaged.