Topic: Coolant Pink? Green?

[Main One]

I was actually kinda hoping you would stumble upon this, Main One....

Coldest I've seen it is around 40 - 50 degrees farenheit, During the peak times in the summer it will reach around 100 farenheit sometimes over...  It's especially bad because of crowded city streets. 

It doesnt stay cold very long, rains in Cairo about 5-10 times MAX. a year

Therefore it doesn't look like you need any anti-freeze characteristics in your coolant, like we do here in the states.  My truck has seen seen ambient temps (farenheit) from about 15 below to about 105.  Our antifreeze here comes with directions on how much to dilute with water depending upon how much antifreeze protection you want, although they have recently started marketing antifreeze that you don't have to mix with water.  That said, we here probably don't know what is really "the best" for your situation.  Water itself straight has good coolant properties, although you can buy additives to give your coolant, straight water or otherwise, better cooling characteristics, such as Water Wetter (I forget whether that is a Redline or other brand additive).  For your situation, you would be looking for a product that has some lubrication qualities (for the water pump) as well as anti-corrosion characteristics.  Our coolant change intervals used to be based largely on how long the anti-freeze characteristics held up, although I'm not sure if that is the determining factor these days.

[Main One]

BTW Hows that Tranny coming Main One?  I should read through the rest of your thread and update!  Hope all is well.

  my own thread...

Got the 5 pinion planetaries that GM puts into the 4l65 late last week.  One was supposedly used, but I couldn't tell that either wasn't a used part, other than neither was in any kind of OEM packaging.

The guy who sold them to me has offered, in the interest of saving me from having to invest in some specialty tools that aren't cheap, a couple of preassembled subassemblies.  As he put it, with these, half of the rebuild work would already be done.  I told him that my plan had been to be on the lookout for parts at good prices over the next few months, and so I am interested in taking him up on that, but not pulling the trigger just yet.  (Wanting to get the temperatures consistently above the coldest in your part of the world, LOL!)  I figure with a few used but in excellent shape otherwise quite expensive hard parts, and not having to spend a few hundred on specialty tools, I can put together a tranny capable of handling well over 600 rwhp for under $2k.  Will try to take pictures and post progress when I start with the actual rebuild.  For now, my replacement tranny is doing quite well, knock on wood.

[MyBigToy]

Therefore it doesn't look like you need any anti-freeze characteristics in your coolant, like we do here in the states.  My truck has seen seen ambient temps (farenheit) from about 15 below to about 105.  Our antifreeze here comes with directions on how much to dilute with water depending upon how much antifreeze protection you want, although they have recently started marketing antifreeze that you don't have to mix with water.  That said, we here probably don't know what is really "the best" for your situation.  Water itself straight has good coolant properties, although you can buy additives to give your coolant, straight water or otherwise, better cooling characteristics, such as Water Wetter (I forget whether that is a Redline or other brand additive).  For your situation, you would be looking for a product that has some lubrication qualities (for the water pump) as well as anti-corrosion characteristics.  Our coolant change intervals used to be based largely on how long the anti-freeze characteristics held up, although I'm not sure if that is the determining factor these days.

Don't forget that antifreeze provides boil-over protection also, as well as providing lubricant qualities for the water pump, etc. Of course the first can that was pictured is also capable of providing the lubricant qualities.

[Main One]

Don't forget that antifreeze provides boil-over protection also, as well as providing lubricant qualities for the water pump, etc. Of course the first can that was pictured is also capable of providing the lubricant qualities.

I think the boil-over protection is over-hyped by the anti-freeze companies.  If you look on the label of an additive like Water Wetter, it indicates it works best with just water in regards to how cool it will keep the engine.