Coolant - ZR-1 Net Registry Forums

jrd1990zr1 · 03-22-2010

Pulled the radiator, flushed out and flushed out the garbage from between the fins. New hoses so I am wondering what should I use for coolant.

I see an older post about "Dexcool".

What is the best coolant to put back in a 1990?

Your thoughts are appreciated.

xlr8nflorida · 03-22-2010

Quote:

Originally Posted by jrd1990zr1

Pulled the radiator, flushed out and flushed out the garbage from between the fins. New hoses so I am wondering what should I use for coolant.

I see an older post about "Dexcool".

What is the best coolant to put back in a 1990?

Your thoughts are appreciated.

I use NAPA, it has the silicates (says it on the bottle) and meets the 1825-M GM spec. It's green in color and inexpensive.

Your main concern is that you want ethylene glycol with silicates and it must meet 1825-M GM Spec.

GM part # 12378560 (expensive) and Original Zerex are other options.

DO NOT USE DEXCOOL WHICH CAN BE ANY COLOR BUT IT IS TYPICALLY ORANGE OR RED.

Good Luck!

jonszr1 · 03-22-2010

i also use the napa stuff .price is right .stuff from the dealer is 26 per gallon

1990 415 · 03-23-2010

Quote:

Originally Posted by jonszr1

i also use the napa stuff .price is right .stuff from the dealer is 26 per gallon

This must be a typo : 26 (dollars) per gallon?

jonszr1 · 03-23-2010

no not a typo the last time i bought from bud eyre chev i paid 52 dollars plus tax for 2 gallons of gm 1825. so with ca. tax it came to roughly 57 dollars .it is the 100% anti freeze deal

jonszr1 · 03-23-2010

the napa stuff was 14.95 per gallon of the same stuff.

xlr8nflorida · 03-23-2010

Quote:

Originally Posted by jonszr1

the napa stuff was 14.95 per gallon of the same stuff.

I think I paid under $10.00 for the Napa stuff.

Just FYI, NAPA has NAPA Gold Filters 40% off this month. Not sure if its my area or National

http://ecatalograck.genpt.com/flyer/...eId=7.0.2.0001

GOLDCYLON · 03-23-2010

The standard green stuff. Dont overthink this one.

Dynomite · 03-23-2010

Quote:

Originally Posted by GOLDCYLON

The standard green stuff. Dont overthink this one.

jrd1990zr1 · 03-23-2010

Stopped by Advance Auto on the way home. Prestone and Advance's coolant doesn't contain silicates. Peak antifreeze does. $12.50 a gallon.

The key is to get the stuff that is the old formula. Thanks for the advice everyone!!!

03-22-2010	#1
jrd1990zr1 Join Date: Dec 2005 Location: Delanson, NY Posts: 916	Coolant Pulled the radiator, flushed out and flushed out the garbage from between the fins. New hoses so I am wondering what should I use for coolant. I see an older post about "Dexcool". What is the best coolant to put back in a 1990? Your thoughts are appreciated.

03-22-2010	#3
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Coolant i also use the napa stuff .price is right .stuff from the dealer is 26 per gallon

03-23-2010	#5
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Coolant no not a typo the last time i bought from bud eyre chev i paid 52 dollars plus tax for 2 gallons of gm 1825. so with ca. tax it came to roughly 57 dollars .it is the 100% anti freeze deal

03-23-2010	#6
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Coolant the napa stuff was 14.95 per gallon of the same stuff.

03-23-2010	#8
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Coolant The standard green stuff. Dont overthink this one. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

03-23-2010	#10
jrd1990zr1 Join Date: Dec 2005 Location: Delanson, NY Posts: 916	Re: Coolant Stopped by Advance Auto on the way home. Prestone and Advance's coolant doesn't contain silicates. Peak antifreeze does. $12.50 a gallon. The key is to get the stuff that is the old formula. Thanks for the advice everyone!!! Last edited by jrd1990zr1; 03-23-2010 at 08:39 PM.