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Old 03-20-2009, 02:36 AM   #1 (permalink)
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[SOLD] Highway Warrior - '00 Mazda Protege LX 1.6L Manual
90 day: 35.93 mpg (US)

Basic Miata - '06 Mazda Miata Touring
90 day: 30.93 mpg (US)
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Choosing a Manual Transmission Fluid for my Mazda Protege

I recently read through MetroMPG's post about the differences in transmission oil viscosity.:

I haven't changed the manual transmission oil since I've owned my Protege (so, about 10000 miles). I know the interval for replacing MT oil is often as much as 100k miles, but I'd like to be able to document when all my fluids were most recently replaced.

So, a few questions: First, as per MetroMPG's forum post, I'm considering using GM Synchromesh transmission fluid. Does anyone have any experience with this particular fluid?

What do other Protege owners use for manual transmission fluid?

Also, stupid question, where is the filler and drain on a 3rd gen Protege? Is it a straightforward job, or do I have to take a lot of stuff apart? The owner's manual explains how to take care of the fluid on the automatic model, but it seems to skip over MT transmission maintenance.

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