Conventional green antifreeze (4yrs old) & 10yr

[Ramblin Fever]

Correct....I DO know for a fact there is no dex type fluid in this truck, never has been.

 

[Kestas]

The color of antifreeze has lost its meaning.

http://www.eetcorp.com/antifreeze/Coolants_matrix.pdf

 

[Ramblin Fever]

Originally Posted By: Kestas
The color of antifreeze has lost its meaning.

http://www.eetcorp.com/antifreeze/Coolants_matrix.pdf


Well...at least none of the green ones listed are of the long-life formulas, my main concern is making sure I never mix any dex-[censored] product with the old conventional green.

Spoke to an Isuzu specialist, who used to build Isuzu engines; the OEM factory fill was Prestone high silicate, since Isuzu's use a lot of aluminum parts.

So I should be good; cause that's what's been in it it's whole life.

 

[Sayjac]

True, AF color as a means of identification is useless. G-05 is yellow-gold as Motorcraft/Zerex and orange-red as Mopar-Chrysler. And linked chart doesn't list the Asian P-HOAT's which can is green as Mazda(two different greens)/Nissan/Hyundai and others, red or pink for Toyota LL or Super LL, and Honda Type2 which is blue. So identification by color alone doesn't work.

As for high silicate original green, my thought is if Zerex, Havoline/Chevron and others thought it important enough to reduce the silicates in their original green formulas, there was good reason. The general reason one will find is to reduce silicate drop out and wear on the water pump seals. While I used a low silicate original green in an Altima, I would never have considered a high silicate og formula. Just me.

The link gives some good information primarily on high silicate original green. Also worth noting is the interval recommended for original green. Apparently it was written before the advent of low silicate original green formulas.

http://www.sancarlosradiator.com/antifreeze_coolant.htm

 

[Ramblin Fever]

Over time I can slowly empty & refill the reserve tank with a low silicate formula; but as of right now, I'm out of time; we leave on vacation in a week, this truck is one of the trailer haulers....there's not much I can do about it now.

Per everything I have found from new till now, this truck's always had high silicate versions of antifreeze, if they're no longer recommended, why are these versions still available from good companies?

One of them being from O'reilly's, just don't remember the brand, but it's a common one.