When to change transmission and radiator fluids

I want to keep this truck a long time. What are some of your thoughts on how often to change these fluids?

 

Coolant should be done at 100k miles, then every 50k miles after that. I would suggest replacing upper n lower rad hoses, thermostat, and rad cap when you do that.

Trans fluid is debatable. I recommend every 30k to do a drain n fill. Then every 60k to do a pan drop and clean the magnets off. You can either clean or replace the filter screen. And def use only OEM gasket n filter screen. I like to do drain n fill every 15k on mine since I tow heavy in the hills.

 

I did my coolant at 50k because Toyota says to do it at 100k and then every 50k so I figured every 50k makes more sense, obviously there's a reason they don't want it every 100k. ATF is dependant on if you have a cooler and if you Tow but just do drain and fills what ever interval you decide on but 60k would be as far as I'd go without ever doing one, I do every 15-20k. Do not drop the pan, especially if you live where they salt the roads, the pan bolts are famous for snapping, I snapped one with very low miles. The filter is replaceable but it is not a screen that can be cleaned, assuming the above poster has not actually dropped the pan yet, here's a link to my post where I opened the filter up, you can see it's not worth replacing. https://www.tundras.com/threads/my-transmission-pan-adventure.110777/

 

I didn’t realize they use a filter mat in the Tundra. My Taco and 4Runner just had a mesh screen, figured it was the same.

 

Yeah it's sort of like a vacuum bag style filter inside a plastic casing.

 

I do the antifreeze every 50k and one round of a drain and fill every oil change (10k). Both are easy and cheap to do.

 

Coolant says 5 years or X mileage. I have a 21 also and I did my coolant drain and fill a few months back at 4 years ans 35k miles.

Tranny fluid do a drain and fill every 5 years or 30k to 60k miles per the car care nut. Im doing mine this coming winter.

 

Car care nut on YouTube says 5yr or 60k. It's cheap just do it.

 

Yup, I buy when toyota parts are on sale, usually 25% off

 

Coming up for a rad redo. The radiator is fine, just needing new coolant. That being said, it runs fine the way it is, no heating issues, needle stays right in the middle. I do like the idea of new hoses etc though.

 

Mishimoto makes some silicone ones I've been running for the last 65k miles.

 

Nice! Sounds good, thank you!