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#3363553 - 05/06/14 04:14 PM 1999 Mazda Miata coolant change
13Tacoma Offline


Registered: 11/14/13
Posts: 53
Loc: California
Hello,

My mom drives a Miata with a little over 100k miles on it. I'd like to change out the coolant this weekend before things get really hot. I think the car has had a bad thermostat that I replaced a few years back but other than that I don't know if any maintenance has been done on the cooling system.

I'm not sure what the recommended coolant would be for this car. Any suggestions of brands/types are appreciated. I only have done toyotas in the past and they make it easy by saying to use their long life coolant.

Thanks
_________________________
2013 Tacoma 5spd 4x4 - 17k - TGMO 0W20 & OEM Filter
2007 IS250 RWD - 133k - PU 5W30 & OEM Filter
1999 Miata - 105k - PU 5W30 & M1 Filter

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#3363593 - 05/06/14 04:56 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
cknight49090 Offline


Registered: 01/25/14
Posts: 202
Loc: south haven mi
I would just use universal green but thats just me.

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#3363731 - 05/06/14 06:56 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
DBMaster Offline


Registered: 09/18/12
Posts: 1960
Loc: Texas
What does the owner's manual state?
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#3363746 - 05/06/14 07:05 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
Eddie Offline


Registered: 12/07/03
Posts: 6600
Loc: Florida, Cape Coral
Zerix Asian brand is what I would use after through flushing.
_________________________
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#3363781 - 05/06/14 07:29 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
fdcg27 Offline


Registered: 09/25/09
Posts: 8984
Loc: OH
After a good flushing, you can use anything.
Peak Global?
Cheap and readily available.
Older Japanese cars are not typically picky about any fluids.
_________________________
12 Accord LX 22K HGMO 0W-20
09 Forester 64K PU 5W-30
02 Accord 127K G-Oil 5W-30
01 Focus ZX3 98K Synpower 10W-30
95 BMW 318iC 146K Defy 10W-40

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#3363957 - 05/06/14 09:37 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
artificialist Offline


Registered: 09/23/07
Posts: 6572
Loc: Florida
Zerex Asian, or Mazda OEM coolant. Japanese cars from the 1990s are built for coolants with no silicates but include phosphates.
_________________________
2010 Lancer Ralliart Sportback

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#3363997 - 05/06/14 10:14 PM Re: 1999 Mazda Miata coolant change [Re: 13Tacoma]
13Tacoma Offline


Registered: 11/14/13
Posts: 53
Loc: California
Awesome. I'll give the Zerex Asian a go.
_________________________
2013 Tacoma 5spd 4x4 - 17k - TGMO 0W20 & OEM Filter
2007 IS250 RWD - 133k - PU 5W30 & OEM Filter
1999 Miata - 105k - PU 5W30 & M1 Filter

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