Originally Posted by StevieC
I've always changed early and frequently within the first couple thousand miles and then I go by what a UOA tells me is safe for my application. Transmission complete fluid change at 30K miles with filter (if applicable), and the diff at the same time. Power Steering I usually do at 50K miles (complete flush/fill) which is plenty considering that many never see any change their whole life. Brake fluid every 2 years regardless of mileage. Coolant at 1/2 the interval of the manufacturer with a spill/fill of the radiator only.
But on the radiator, you aren't really changing the bulk of the fluid if you only change the overfill tank fluid (assuming I'm reading what you wrote correctly)?
I've always changed early and frequently within the first couple thousand miles and then I go by what a UOA tells me is safe for my application. Transmission complete fluid change at 30K miles with filter (if applicable), and the diff at the same time. Power Steering I usually do at 50K miles (complete flush/fill) which is plenty considering that many never see any change their whole life. Brake fluid every 2 years regardless of mileage. Coolant at 1/2 the interval of the manufacturer with a spill/fill of the radiator only.
But on the radiator, you aren't really changing the bulk of the fluid if you only change the overfill tank fluid (assuming I'm reading what you wrote correctly)?