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05-15-2014, 11:54 AM
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#1 |
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Registered User
Join Date: May 2013
Location: Houston Texas
Posts: 713
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Coolant??
Hey all, 2011 5.3. I have been trying to get a good answer but cant find one, what kind of coolant should I run? I have been using just water but I don't think that is a good idea. I have read good and bad about dex-cool but I don't know much about coolant.
Thanks for any help 
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05-15-2014, 02:08 PM
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#2 |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: Coolant??
Chevrolet engineers made that stuff for a reason, I am sticking with what they recommend!
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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05-15-2014, 03:38 PM
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#3 |
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Registered User
 
Join Date: Dec 2012
Location: Los Banos CA
Posts: 2,705
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Re: Coolant??
The orange stuff here.
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1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR *SOLD* GO  GO!!!
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05-15-2014, 03:49 PM
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#4 |
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Registered User
Join Date: Aug 2012
Location: tucson,az
Posts: 274
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Re: Coolant??
just run prestone. dex cool sucks. if you have more then one type of metal in the system it will gum up. do a search and judge for yourself
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05-15-2014, 04:43 PM
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#5 | |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: Coolant??
Quote:
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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05-15-2014, 05:32 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: tucson,az
Posts: 274
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Re: Coolant??
just type in dexcool in a general search. Lots of hits and misses.
plain old green stuff? all good. I myself had a bad experience with dexcool on a tahoo. it gummed up my heater core and found out there was a tech bulletin on dexcool. Never again http://www.consumeraffairs.com/news0...m_dexcool.html |
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05-15-2014, 05:46 PM
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#7 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: Coolant??
On the 5.3 swap ,in my 69 I am running the green "coolaid". as said above ,don't mix em
 Longhorn
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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05-15-2014, 10:39 PM
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#8 |
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Truck and auto performance nut
Join Date: Feb 2007
Location: McKinney,Texas
Posts: 3,848
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Re: Coolant??
from what I've gathered....those that had problems with dexcool were more likely to have a leak and more importantly... a low coolant level.
sealed and full systems don't generally have the same problem. My TBSS is 7-8yrs old now and still running dexcool without a problem. System was flushed early at like 25k mi. and truck has 97k now. That said.....when I do flush it this summer it'll probably get the green stuff. 
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Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken |
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05-16-2014, 12:24 AM
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#9 |
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Registered User
Join Date: Feb 2013
Location: Aubrey, TX
Posts: 308
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Re: Coolant??
I run dexcool in all my vehicles with no issues thus far
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05-16-2014, 01:09 AM
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#10 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Coolant??
I have a 08 Tahoe with it and it has 70,000 on it no problems. My wifes 2011 Treverse has it 60,000 my 71 has it in the 6.0 my son's 2014 camaro has it. It's new.
I don't see a problem with it but who knows. GM isn't recalling them for coolant yet!
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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05-16-2014, 08:15 AM
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#11 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
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Re: Coolant??
i used a 50/50 green mix longlife that mixxes with any color and type of coolant
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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