Replace your coolant: CX-5 CX-3 Mazda3 Mazda6

[dunhillmc]

With FL22, is normal operating procedure (what you'd get at the dealer in a complete coolant replacement) a 50/50 mix with distilled water as with other cars and types of coolant?

It's good to know Mazda ships 'em out low or they sink from high to low periodically, that once per year experience. I'll know what to look for. That 4 year old jug of Prestone I mentioned was used probably once per car since I bought it, a less frequent top off than you indicate.

Mazda no longer makes an FL22 concentrate. The OEM coolant comes pre-mixed and is a 55/45 mix

 

[VQ35DE]

I’ve been topping off with a quart of Ravenol FL22 over the last couple of years. Shouldn’t drop below the L between now and when I need to replace the coolant.

Me too and bought it on Amazon.