Coolant Type - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cmart · 12-12-2008, 02:36 PM

Are these trucks as particular about the coolant type you put in them as the 88-98 models are? I can't remember exactly because I've been asleep since then, but I know on the earlier ones you HAD to use the green or orange coolant. I can't rememeber.

Anyways...what do you use with the 5.3L?

Thanks.

DirtyLarry · 12-12-2008, 04:30 PM

If you are adding coolant to it, it needs Dex-Cool. The yellowish red long life coolant…. If you are doing a full system flush go back to regular green glycol antifreeze as older vehicles used. Some people swear by Dex-Cool and some people swear at it. I am one of the later.

cmart · 12-15-2008, 10:15 AM

Ok. Thank you very much.

**truckdude239** · 12-15-2008, 11:19 AM

flush it and use regular antifreeze people mistake the 5 years or 100k miles change interval it means which ever comes first i've seen cars 10 years old with dexcool with not being changed and they only have 50k on it and it has gelled up inside the cooling system

12-12-2008, 02:36 PM	#1
cmart Registered User Join Date: Nov 2008 Location: Nashville, TN Posts: 46	Coolant Type Are these trucks as particular about the coolant type you put in them as the 88-98 models are? I can't remember exactly because I've been asleep since then, but I know on the earlier ones you HAD to use the green or orange coolant. I can't rememeber. Anyways...what do you use with the 5.3L? Thanks. __________________ 1999 Chevrolet Silverado 1500 extended cab, short bed. 5.3L automatic.

12-12-2008, 04:30 PM	#2
DirtyLarry Windy Corner of a Dirty Street Join Date: Jun 2003 Location: Pueblo West, Colorado Posts: 2,926	Re: Coolant Type If you are adding coolant to it, it needs Dex-Cool. The yellowish red long life coolant…. If you are doing a full system flush go back to regular green glycol antifreeze as older vehicles used. Some people swear by Dex-Cool and some people swear at it. I am one of the later. __________________ Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles Instagram

12-15-2008, 10:15 AM	#3
cmart Registered User Join Date: Nov 2008 Location: Nashville, TN Posts: 46	Re: Coolant Type Ok. Thank you very much. __________________ 1999 Chevrolet Silverado 1500 extended cab, short bed. 5.3L automatic.

12-15-2008, 11:19 AM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Coolant Type flush it and use regular antifreeze people mistake the 5 years or 100k miles change interval it means which ever comes first i've seen cars 10 years old with dexcool with not being changed and they only have 50k on it and it has gelled up inside the cooling system __________________ 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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