Jonny98max

iTrader: (2)

I really need to change out my coolant...its been like 50k miles since ive last changed it....MY BAD.....but i was wondering if i should bring it in and get a coolant flush or just drain it out and put some new stuff in....what do u guys recommend???

also what is the exact type of coolant does our car recommend?

sky jumper

what type of coolant is in there now? was it flushed last time, or just drain/fill? if only OEM coolant has been used in the past, then stick with it and just do a drain and fill. if you used something else last time, or are unsure of what combination of fluids is in there, then take it to a shop and do a full machine flush with either OEM or Zerex G05. do not use traditional green. the Dexcool clones are prolly ok, but G05 is better. go search the coolant forums at bobistheoilguy.com for more info.

KaZ

iTrader: (5)

For the Twin Turbo Zs, I and every other owner I knew (and I know alot) tend to stick with standard non-mixed Prestone Antifreeze. For the Zs a 70/30 Water/Antifreeze mix is recommended, but it varies from vehicle to vehicle. But most recommend a 50/50 mix of antifreeze to water. Just make sure to use DISTILLED water or premixed 50/50 antifreeze. Don't use tap water. Tap water is BAD BAD BAD BAD! The contaminents and minerals in straight tap water can rust the inside of a block or other areas of the cooling system (depending on the composition, i.e. iron, steel, aluminum, etc). I've seen a few Zs that drained MUD out of the radiator from people using tap water... =(

Check the owners manual and stick with what it recommends.

Vlasic

iTrader: (13)

Technically you shouldnt use prestone green coolant because it has silicates (i think) in it which are bad for aluminum block, but i use it anyways..not problems. If you absolutely have to use coolant without the silicates, use OEM Honda coolant, its just as good as OEM NIssan coolant, but cheaper.

As for replacing the coolant, do it yourself, all you need is a drain pan and a screw driver, dont even need a jack. To change everything out do as follows;

1. drain radiator contents.
2. fill radiator with water.
3. run engine until thermostat opens.
4. drain radiator.
5. repeat steps 2-4 about 2-3 more times.
6. fill radiator with 100% anti-freez

Doing this will get the used coolant out of the cylinder banks so that you dont have to drain them manually because the bolts for that are very hard to get to. After filling and draining so many times, you will get straight water transfered to thoes cylinder banks, then when the 100% of anti-freez in the radiator mixes, you will get about a 50-50 mix.

95mtlMAXSE

http://www.motorvate.ca/mvp.php/502
this is all u need