Toyota recommends a complete coolant change after your first hundred thousand miles and then every 50,000 miles afterwards. Each specific year and model of tundra will have a slightly different coolant capacity which is between three and 3 1/2 gallons.

Here’s a link to the Tundra service manual on eManuals online: https://shrsl.com/4hf61

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Robinair not Mityvac makes my coolant refiller: https://amzn.to/3UMscY9
1295 pc. trim clip set: https://www.amazon.com/dp/B0BGLB6DWX/...

To see all of the tools that I use and recommend, visit the Tool Demos store: https://www.amazon.com/shop/tooldemos
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