Coolant Change ????
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Unless you have a lot of corrosion in the system (coolant a nasty brown color) you should not really need flushing chemicals. Once you drain all of the old coolant, refill with plain water and let it drain about 2 or 3 times. You will need to remove the knock sensors at each side of the block to get the old coolant out.
Refill the system with a 50-50 mix of a good ethleyne glycol (green) coolant and distilled water. This would be a good time to change the upper and lower radiator hoses too!!
Some folks use Watter Wetter as a way to help keep coolant temps down, but if you normally see temps between 195 and 205 or so, you should be fine. Check the front of the radiator and A/C condensor to make sure it's free from dirt and debris. You can use a stream of water from a garden hose pointed from the back side of the radiator to clean any junk out.
Refill the system with a 50-50 mix of a good ethleyne glycol (green) coolant and distilled water. This would be a good time to change the upper and lower radiator hoses too!!
Some folks use Watter Wetter as a way to help keep coolant temps down, but if you normally see temps between 195 and 205 or so, you should be fine. Check the front of the radiator and A/C condensor to make sure it's free from dirt and debris. You can use a stream of water from a garden hose pointed from the back side of the radiator to clean any junk out.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Also, do a good water flush. If the system is drained, flushed and refilled with new coolant every 2 years, a chemical flush should never be needed. The fresh antifreeze will have all the additives you will need.
RACE ON!!!
RACE ON!!!
Melting Slicks
Joined: Apr 2004
Posts: 3,287
Likes: 7
From: n/a SC
what if there is a little bit of sludge in the top of the coolant tank (black tank on passenger side) if I run my finger in there on ythe top there is a little sludge. Would a regular flush still clean all that out?
