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What fluids need replacing?

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Old 06-08-06, 09:05 PM
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What fluids need replacing?

So I bought my FD with 120,000 ish miles... with 40k on motor. I wanted to just play it safe & replace the fluids, since I have no idea how old the stuff in the car is. So... what fluids should I replace... & what are not really necessary?

I'm thinking oil (which I already obviously do)... coolant, & tranny. Anything else I should do? I'd rather spend a little bit of $ on new fluids, & not have to deal with problems from bad fluids later on.
Old 06-08-06, 09:15 PM
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The diff and the power stearing. I like red line so I use that in my diff and trans. also use there water wetter in the coolant.
Old 06-08-06, 09:30 PM
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IMO, they're all "necessary", generally easy and relatively inexpensive. I'd vote for the brake fluid too.
Old 06-08-06, 09:58 PM
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Your instincts are correct, replace all fluids right away. Some of my personal recommendations would be Mazda long life anti-freeze from the dealer and synthetic fluids
in the differential and transmission. Make sure the oil filter has an anti-drainback valve....I use the stock Mazda filter, and get a new crush washer for the oil drain plug.

Also at the top of the list should be changing the fuel filter. A clogged filter can disrupt the fuel flow and possibly detonate your engine. If you can't be sure it was changed relatively recently I'd change it anyway as a precaution.
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