Brain tease

[Phil Waterman]

Bob - Your point that it might have been the premixed 50/50 mix they are selling these days. That was the first thing I check no what I had is straight long life antifreeze that needs to be diluted. After confirming this I mixed carefully mixed 2 ounces of water and 2 ounces of antifreeze in a graduated cylinder, check with hydrometer and got a -35F reading.

Mike and Richard - you are both narrowing in on the issue - "what’s a quart" and "Imperial or US gallon" I dumped in 7 quarts (US) antifreeze. Cooling system is listed as hold 13 quarts (it doesn’t say imperial but that should be assumed) which would convert 15.61 US quarts if my conversion factor of (1 quart [UK] = 1.200 949 925 5 quart [US, liquid]) is correct. Buy that conversion factor I should have added 7.806 US quarts.

Now the joker in the mix is that the 235-261 engines actually hold more coolant 17.25 quarts verse 216 engines at 15.5 quarts.

Moral of the story is in Bob’s comment drain the entire system premix the antifreeze and water out side of the engine then fill the engine.