What type of coolant

[John U]

My usual STP green coolant is no longer sold anywhere around here.
What should I be looking for when it comes to coolant...too many different choices!
Thanks
John

[Chris 16409]

I use this coolant from O'Reilly:

http://www.oreillyauto.com/site/c/detail/AFZ0/GAL/N0496.oap?ck=Search_N0496_-1_3498&pt=N0496&ppt=C0059

33683

It makes two gallons. Good value.

[David T]

I use this coolant from O'Reilly:

http://www.oreillyauto.com/site/c/detail/AFZ0/GAL/N0496.oap?ck=Search_N0496_-1_3498&pt=N0496&ppt=C0059

33683

It makes two gallons. Good value.

Any nationally branded Anti-freeze is good. I like Prestone. If your local water is hard you should buy the pre-mixed stuff. It should be tested annually and changed every 5 years.

[John U]

Found the answer in the manual...50/50 mix of demineralized water and ethylene glycol based for aluminum engines

[Bitsyncmaster]

Do they even sell that green 2 year coolant anymore?

[Chris 16409]

Do they even sell that green 2 year coolant anymore?

That's what the o'rielly stuff is. That why I like it because it's not the extended life stuff. I mix it with distilled water in a 2 gallon container.

[John U]

Ended up buying prestone for "all cars and light trucks". Cant find my regular green stuff anywhere!

[DavidProehl]

I use the Prestone yellow coolant as well. Can't find green stuff anywhere, though I haven't checked O'Rielly.

What is the concern with the extended life coolant? This stuff is rated safe for aluminum.

[Flicky]

If you have everything sorted on the car and want a lifetime coolant that will not cause you any corrosion problems you can go with Evans. It is about $40 a gal and will take about 4 gal. It uses no water and supposedly not toxic to pets. It also has a very high boiling point and doesn't build pressure like water based. Down sides are cost and a shop not knowing it is in there so they fill it back with water. If you do have to replace something, you can drain the stuff out, filter it (get a big cone coffee filter), then put it back in.

You should run their prep fluid before converting.
http://www.evanscooling.com/

Looks like there have been threads on this already:
http://dmctalk.org/showthread.php?6085-Waterless-Coolant

Note: I was going to switch to this on my D, but haven't yet. I run it in my high performance ("drag") cars and have been very happy. I think it would be best for a D that doesn't get driven much. I intend to drive mine as much as I can with the new EFI and Turbo. One more week and I'll have it back.

[David T]

If you have everything sorted on the car and want a lifetime coolant that will not cause you any corrosion problems you can go with Evans. It is about $40 a gal and will take about 4 gal. It uses no water and supposedly not toxic to pets. It also has a very high boiling point and doesn't build pressure like water based. Down sides are cost and a shop not knowing it is in there so they fill it back with water. If you do have to replace something, you can drain the stuff out, filter it (get a big cone coffee filter), then put it back in.

You should run their prep fluid before converting.
http://www.evanscooling.com/

Looks like there have been threads on this already:
http://dmctalk.org/showthread.php?6085-Waterless-Coolant

Note: I was going to switch to this on my D, but haven't yet. I run it in my high performance ("drag") cars and have been very happy. I think it would be best for a D that doesn't get driven much. I intend to drive mine as much as I can with the new EFI and Turbo. One more week and I'll have it back.

The Evans coolant isn't all it is "cracked up" to be. For all it's expense you are probably better off to buy the good old green stuff and just change it regularly every 5 years. There are few things that can be a better replacement for regular maintenance.