Too much coolant, not enough water - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Too much coolant, not enough water

Reply

 
 
 
Old 12-21-2011, 12:19 AM
  #1  
Senior Member
Certified GM nut
Thread Starter
 
SignOfZeta's Avatar
 
Join Date: Mar 2005
Location: New Milford, CT
Posts: 2,284
Thanked 16 Times in 13 Posts
SignOfZeta has a spectacular aura aboutSignOfZeta has a spectacular aura about
Default Too much coolant, not enough water

While replacing my tensioner, I drained the radiator, heater hoses, and whatever came out with the tensioner and cooling elbow. Couldn't have been more than 1 gallons.

When refilling the radiator, I poured in a gallon of 100% coolant, and then grabbed a jug of water, but the system was already full. The level didn't drop much when the thermostat opened, either. Very strange, but it'* cooling just as well as it was before, so I won't worry.

I'll assume the block and heater core were still full of my old 50% strength mix, so if I lost half my coolant during the repair, I guess I'm running on about a 75% strength mixture right now. That won't cause any problems, will it?
SignOfZeta is offline  
Reply With Quote
Old 12-21-2011, 07:37 AM
  #2  
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

the water does your cooling really so if anything you should err on the other side. there is a cheap tool that tests your protection level, if you drain a little and refill with water, then test, and repeat until you get around -10 to -30, should be good. you should drive it for a while to make sure everything is mixed up.
jwfirebird is offline  
Reply With Quote
Old 12-21-2011, 07:38 AM
  #3  
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

jwfirebird is offline  
Reply With Quote
Old 12-21-2011, 08:30 AM
  #4  
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 20 Times in 16 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Water is a better coolant then coolant. Coolant is mainly a antiboil and antifreeze. So being strong will help prevent it from freezing. You may notice a bit more heat in the summer though.
Danthurs is offline  
Reply With Quote
Old 12-21-2011, 10:36 AM
  #5  
Senior Member
Posts like a Supercharger
 
Join Date: Feb 2011
Location: Margate, UK
Posts: 199
Thanks: 0
Thanked 0 Times in 0 Posts
rustyroger is on a distinguished road
Default

Keep a 50% solution in the system regardless of the ambient temperature.

Antifreeze contains inhibitors to prevent electrolytic erosion, important for any engine with aluminium parts such as head, water pump, manifold or radiator. These break down over time which is why you should flush and refill every 3 years - time rather than mileage is the factor here.

A 75% solution might lead to overheating in the summer months but you shouldn't have any problems at this time of year.

Roger.
rustyroger is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
djm
1992-1999
7
11-14-2010 06:16 PM
PontiacMom
Lounge
14
09-03-2005 11:17 PM
J Wikoff
Forced Induction
3
04-26-2005 11:20 PM
mremer
Lounge
7
03-10-2004 12:54 AM
buickman401
Performance, Brainstorming & Tuning
7
05-05-2003 11:36 PM


Thread Tools
Search this Thread
Quick Reply: Too much coolant, not enough water


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.