What Antifreeze?

[georgej]

Hi Guys, I'm asking this question for a friend who has a '03 3500. He is changing out the antifreeze and swears it came from the factory with Dex Cool and after reading all the problems that GM owners are having with the stuff I thought I'd check here and see if it was factory fill. On the same question what would you recommend he refill it with?



Thanks, George

 

[Pawpaw]

According to the Zerex site, their G-05 is what is in all Chrysler vehicles now. It just has a dye to make it a different color.



I used G-05 to top mine off a few weeks ago. I'm coming up on 100K, so it's almost time to change the coolant. I'll use the same stuff.



Bob

 

[GaryOwen]

Zerex G-05 is available at AutoZone. I think NAPA has it as well.

 

[georgej]

Thanks for the responses. My buddy would have just gone down and bought some "Dex-cool" and possibly ruined his engine. Funny thing is he builds drag cars but won't take the time to read his trucks owners manuel!!

 

[MMeier]

Been using good ol' Prestone in mine now the past 150k or so miles. Seems to work great! Also, mix in some RMI-25 when I flush it out every 50 k.

 

[rbattelle]

I've been running Fleetguard Compleat PG for over 3 years now. According to Fleetguard, I will not need to replace this coolant until the first engine rebuild.

Note: the owners manual specifically prohibits the use of PG. I have no idea why.

Ryan

 

[JHardwick]

I flush and fill mine with Prestone every fall.