So I've winterized our boats forever, never had a problem, usually used -50 pink. We're in western NY so it gets plenty cold.
For some reason I couldn't remember if I pulled the big hose from the water pump side this year (twin 350's) to dump that water that gets trapped in the bend. So, I grabbed 4 more gallons of AF (West only had -100, so I'm REALLY protected now) to re-do the job.
Here's the kicker. I had used -60 this year, which is a pretty dark purple. I pulled the block plug on the one motor and out comes very very pale purple water. I collected some in a cup to be sure, and this stuff was basically clear. Somehow the 2-3 gallons of AF I put into the motor got completely diluted.
I drained both blocks for a second time, poked the holes with a zip tie, and refilled with the -100. I'm pretty confident in this job now that I've done it twice, but where did that water come from?! I've heard the intake manifold will hold some, and maybe the water pump hose if I forgot to empty it, but the water was extremely diluted. Just very surprising I guess. Interested to hear what you guys think
For some reason I couldn't remember if I pulled the big hose from the water pump side this year (twin 350's) to dump that water that gets trapped in the bend. So, I grabbed 4 more gallons of AF (West only had -100, so I'm REALLY protected now) to re-do the job.
Here's the kicker. I had used -60 this year, which is a pretty dark purple. I pulled the block plug on the one motor and out comes very very pale purple water. I collected some in a cup to be sure, and this stuff was basically clear. Somehow the 2-3 gallons of AF I put into the motor got completely diluted.
I drained both blocks for a second time, poked the holes with a zip tie, and refilled with the -100. I'm pretty confident in this job now that I've done it twice, but where did that water come from?! I've heard the intake manifold will hold some, and maybe the water pump hose if I forgot to empty it, but the water was extremely diluted. Just very surprising I guess. Interested to hear what you guys think