Not sure on the years, but I think 3 years ago. Truck is just 7 years old. Purchased new summer of '00, but it was 1 yr old then, almost 2 years old. Not sure of the build date. That would be 5 or 6 year old fluid.

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I just checked my fluid and it looks brown I don't like this dexcool stuff .... i'll take it in first thing in the morning and get it looked at ...

 

I hear you. DexCool always seem to look brown.

 

Yeah, it seems to look pretty bad real quick but I haven't had/noticed any problems with it yet.

 

The only problem I've ever had with mine is all the brown **** deposits in the reservoir...

Wondering if it would be easy just to pull that and spray it out.

 

You get that brown film around the reservoir too?

Looks like rust, but it's just DexCool crud.

 

Yeah... I need to try and clean it out some weekend... probably will make a mess, but at least it will be clean. (but for how long I wonder)

Maybe just paint it except a small bit to see the level..

 

When I replaced the LIM gasket on my montanas 3400, it looked like the gasket had failed because it was made too thin. The fel-pro gasket I replaced it with looked almost 1/2 a mm thicker..

 

yea, i only trust dex-cool in my chevys. and for that deposited brown stuff......last fall i flushed the radiator in my 99 jimmy 4.3 and that stuff came right out of the resevoir, cleaned up real nice. gm says to only put dexcool in there radiators. once a buddy put something else in his gm and it gunked up within a couple months. im sure just some fluid not being dexcool wouldnt hurt (as if your topping it off), but not a whole fluids change. ive never had a problem with the cooling system, stayes right where it should. but i maintain the vehicle well, also. i dont think ill try throwin dexcool in my older ranger tho.

 

Some anti-freeze brands are compatable with both, I think Prestone has one. I only use Dex-cool.
Wayne
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