Re 99 Avalon XLS V6 w/133K miles. Old girl will be 17 next month. OM calls for coolant change every 2 years or 30k miles. Since new, I have faithfully replaced coolant every two years using only Toyota Red (FF). Since I drive her less than 5k miles per year, was wondering if I can extend time between changes. I realize corrosion inhibitors break down over time independent of miles driven so I am reluctant to extend interval. However, the car can not last forever and changing every three years instead of two seems reasonable.
I could flush the system and replace with Toyota Pink which should last the life of the vehicle but I already have the Red on my shelf.
What do you guys think? Thanks.
I could flush the system and replace with Toyota Pink which should last the life of the vehicle but I already have the Red on my shelf.
What do you guys think? Thanks.
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