RotoRocket

iTrader: (1)

I was checking my oil, as I typically do every 10 days or so, and noticed that my coolant level in the reservoir dropped a tad. Not much, but enough to notice. It's still full.

Anyways, that got me thinking about the 60k coolant interval flush and refill as recommended in the manual.

I know, because I just searched, that a lot of my fellow 8 owners are doing the flush and refill every two years or even more frequently, using coolant plus distilled or de-mineralized water:

https://www.rx8club.com/showthread.p...=coolant+flush


Anyways, a lot of people think the manual is actually conservative when it comes to coolant interval changes. A lot of modern cars are designed to go much longer before needing one (GM and their Dexcool - I know, many reported problems).

Also, the rotary is heat generating machine - much more so than most coventional motors.

Here's my question: Does anyone here have an opinion on the ideal coolant and change interval with the 8 in moderate climates (midwest)?

Also, I haven't seen any recalls or TSBs regarding the factory setup on the coolant system? Have I missed any? I know there are some heat shield TSBs, etc., but I'm talking coolant or coolant system directly.

Thanks.

dannobre

iTrader: (3)

2yrs on factory then every 2 yrs later as a minimum

I do mine a lot more....it's kinda like oil.....cheap insurance

New engines with a lot of aluminum and iron combinations like our engines...can have a lot of galvanic problems from the dissimilar metals if the coolant becomes depleted of the anti corrosion additives...or if it becomes compromised from crappy water ..

RotoRocket

iTrader: (1)

And you're using Mazda spec'd or OEM coolant on the changes?

Thanks.