With what fluid should i refill my radiator?

Asked by EddieMack13 Aug 06, 2020 at 11:53 AM about the 2004 Chevrolet Trailblazer LT 4WD

Question type: Maintenance & Repair

When flushing my radiator what do i fill up with
someone told me coolant and others told me just
water...which is  the correct fluid

3 Answers

10

Hi its best when flushing your system to use the recomended coolant for your vehicle. That information can be found in your owners manual. If you dont have the owners manual you can download it for free here..http://www.manualsonline.com and the only time you should put water in your radiator is if that is the only choice you have otherwise always use 50/50 diluted coolant or 100% concentrated coolant in which you have to dilute yourself.. Good Luck....

11,195

Don't do just water. Fill it up with Dexcool, 50/50% mixture of Dexcool and water. If you use concentrate (cheaper), get a hydrometer (about $3). Want the mixture to read -35 degrees for a proper 50/50 mixture. Anything less than that OR more than that, can cause overheating. You'll have coolant/water in the block that won't drain out, so recommend concentrate.

You could use only water with a rust preventative added in but if there is freezing weather you will crack your engine. Water Wetter is another additive I would use. A little known fact is water is a better coolant than anti freeze.

1 people found this helpful.

Your Answer:

Trailblazer

Looking for a Used Trailblazer in your area?

CarGurus has 1,350 nationwide Trailblazer listings starting at $21,800.

Postal Code:

CarGurus Experts

  • #1
    FJ4072
    Reputation
    7,440
  • #2
    Gene Arnett
    Reputation
    3,170
  • #3
    bigdogracer
    Reputation
    2,730
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Blazer
30 Great Deals out of 1,376 listings starting at $23,989
Used Chevrolet Silverado 1500
222 Great Deals out of 9,112 listings starting at $2,900
Used Chevrolet Equinox
103 Great Deals out of 3,646 listings starting at $1,995
Used Chevrolet Tahoe
18 Great Deals out of 859 listings starting at $9,980
Used Toyota RAV4
111 Great Deals out of 2,857 listings starting at $2,949
Used Jeep Grand Cherokee
121 Great Deals out of 3,487 listings starting at $4,950
Used Honda CR-V
157 Great Deals out of 4,953 listings starting at $440
Used Ford Explorer
53 Great Deals out of 2,231 listings starting at $7,990
Used Toyota 4Runner
20 Great Deals out of 517 listings starting at $6,825
Used Chevrolet Colorado
38 Great Deals out of 1,157 listings starting at $5,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.