Radiator

[brian a.]

Iwant to flush my radiator on my 98Z, dont seem to hard but want to ask ? before i take a chance. Under car on passenger side i found small drain is this what i open to drain? do i leave drain open and from top use garden hose to flush out with water? and would like to know how to fill how much antifreeze/ how much water? is prestone ok thanks for any help brian

[Airborne007nyc]

yes. The plug you found under your car on the passenger side is the drain plug. Unscrew it off and drain using water hose. Refill with GM APPROVED anti-freeze (50% water and 50% anti-freeze). MAKE SURE you look in the owners manual. It will tell you what kind of anti-freeze to use or just go to Autozone and look for the GM APPROVED stamp on a anti-freeze bottle. The one I use is Preston and it came in a gray bottle. I just filled it up until it was full.

[brian a.]

thanks for the help.. how many bottles should i get in order to tell when im half/half? will it hurt anything if i get more of one in there then the other? brian

[Airborne007nyc]

I bought one bottle and I used almost all off it. I used a empty gallon milk carton and filled half water and half anti-freeze. It will not hurt your car if your off by a little like + or - 5%. But if too much off, your car can run too hot or anti-freeze can freeze.
________________________________________________
Mike 1998 SS (clone)

HPP III
3in Flowmaster exhaust
Ported MAF and TB
SLP CAI
Stage one suspension
Free ram air mods

[86RedRocket]

I add the the gallon of antifreeze, and then begin filling w/water.

[brian a.]

thanks for the help everyone,im going to do radiator first thing Sat. morning... hey airborne007nyc i noticed you had flowmaster exhaust. i have 98Z with 3in flowmaster to, i bring this up because was looking to get ideals for some headers for car, went to the exhaust forum and was reading seemed like people didnt have much good to say about flowmaster.. dont understand this havent done to many mods but think that exhaust was about best mod yet... thanks Brian

[Rare99HuggerZ28]

make sure you use the pink stuff, if you use the green, it will harm the water pump and the rest off the cooling system, altho, some did come factory with the green, see what color it is when it comes out first. i do this for a living as well as sell new rads, heaters, condesors and cores for rads and big trucks. sorry for calling it pink stuff, but my brain is in weekend mode. also, it should be 70% pink(or green) and 30% water for the correct ratio.

[Airborne007nyc]

hey airborne007nyc i noticed you had flowmaster exhaust. i have 98Z with 3in flowmaster to, i bring this up because was looking to get ideals for some headers for car, went to the exhaust forum and was reading seemed like people didnt have much good to say about flowmaster.. dont understand this havent done to many mods but think that exhaust was about best mod yet... thanks Brian [/B][/QUOTE]
_______________________________________________
I am getting rid of my flowmaster. Feels like car revs high and I am not moving as fast as I used too. I am sure one of the best exhaust to answer your question is SLP Loud mouth WITH the SLP headers. Your car should have awesome performance gains. I myself am going with the Loud mouth but SLP headers are TOO expensive but worth it.