Craig Lescombe
Member
- May 15, 2019
- 51
- Boat Info
- 1990 350 Express Cruiser
- Engines
- 454 CID / 7.4 Liter Twins
Hello Folks - First time winterizing this boat as previous owners stored in an indoor heated facility. 70 gallon fresh water tank. Ran all outlets and drained to the 3" height mark, before outlets sputtering occurred, on a tank measuring L80" x W24" x H13". Doing the math leaves me with approximately 16 gallons in a 70 gallon tank. I have read all the previous info / posts info hand in hand with this topic and other than jumping through hoops to completely drain the tank, it is what it is.
The question being, can anyone approximate / recommend how may gallons of -50 degree celsius / - 60 degree fahrenheit anti-freeze I should add to prepare for maximum lowest winter temperatures of -10 degree celsius / + 14 degree fahrenheit? I ask because what I do pour in will get somewhat / considerably diluted by the freshwater left in the tank.
Thanks - Craig
The question being, can anyone approximate / recommend how may gallons of -50 degree celsius / - 60 degree fahrenheit anti-freeze I should add to prepare for maximum lowest winter temperatures of -10 degree celsius / + 14 degree fahrenheit? I ask because what I do pour in will get somewhat / considerably diluted by the freshwater left in the tank.
Thanks - Craig