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13

There are two kinds of coolant long life and conventional. Conventional coolant uses silicate salts as a "preservative" per se. They help to reduce corrosion and what not. Long life coolant uses organic acid to do the same thing. The organic acid lasts longer than the silicate salts. Mixing the two kinds of coolant is not recommended. Adding long life ...


3

All three - front, back and transfer box/centre diff. As it's a permanent 4WD system, all three diffs are in constant use, so if you've got no record of them being changed, it's probably worth doing all of them. Saying that, what does the service schedule recommend? I can't remember if the Discovery 3 still has traditional 'swivels' on the front axle, but ...


2

From what I'm reading on various Land Rover forums, the dealer-recommended fluid, Texaco Cold Climate Fluid #14315, is a mineral-oil based fluid. Since this fluid is/was difficult to obtain, many of the posts are stating that a Dexron III compatible non-synthetic ATF should work fine as long as ambient temperatures in the area don't dip below -20°C (-4&...


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