You sure can--you can put more on. Any other answer would be telling you how to do something illegal in most localities. Turning back the miles on a car is fraud.
why do toyota sienna transmission leaking after change a new transmission and ran 5000 miles?
100K miles transmission oil flush & change.
You suppose to change it every 60000 miles, and as maximum as you can go. And it's in the case when you have a good quality transmission fluid.
every 60000 miles
Yes.
You should change it every 75,000 miles.
It is never a bad idea to change transmission fluid. However I would recommend you change it every 75,000 miles. This is sufficient on any vehicle.
I recommend you have it changed every 50,000 miles.
Change it at the interval recommended in your owners manual. Every 75,000 miles is what most recommend.
Transmission fluid will last roughly 70,000-80,000 miles so anywhere in there.
70,000 miles
Every 15K miles