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Jul 21st, 2025 | | | | Joined: Mar 2003 Posts: 1,132 Shop Shark | | Shop Shark Joined: Mar 2003 Posts: 1,132 | Trying to figure out the coolant capacity in my 49 suburban with a 283 and the original radiator. searched the net no luck. any help out there? need to get it winterized soon. It gets below zero here in WI. All help appreciated.
Weeds
Last edited by Weeds; 10/27/2017 2:06 PM.
| | | | | Joined: Dec 2015 Posts: 2,061 Big Bolt Forum Moderator | | Big Bolt Forum Moderator Joined: Dec 2015 Posts: 2,061 | 55 manual says 17qt. I would use that capacity. 2 gallons of antifreeze is 8 qts, which is what you want for a 50/50 mix in a 16qt system. Look on the back of the jug, and depending on how cold it gets in your area, that should be fine. You can also get an antifreeze tester to see where you are at currently. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Add a gallon of antifreeze, a gallon of distilled water, from then on, mix 50/50 in each jug and fill with that 'til full. Or if one is lazy, one can buy 50/50 premixed.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Feb 2004 Posts: 28,674 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 28,674 | A 50/50 mix freezes at -37 degrees F. If it ever gets that cold in Tennessee, I'm moving to Taihiti! Rather than paying antifreeze prices for water, I buy the concentrated stuff and mix my own 50/50 coolant, using an empty 1 gallon container and pouring it half full, then topping both off with water. Be sure to drain the block as well as the radiator to get all the water out before refilling with the coolant mix.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Aug 2013 Posts: 217 Shop Shark | | Shop Shark Joined: Aug 2013 Posts: 217 | Buying 50/50 antifreeze is like buying light beer. If I wanted light beer I would add water to my PBR! | | |
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