Engine/Transmission (1998.5 - 2002) peak anti frz.

[RichB59]

Picked up some PEAK anti freeze pre mix . ethylene glycol and diethlene glycol . Question is can I use this stuff,


says it mixes with everything and should I trust the water its mixed with?? astm d-3306.



Thanks for advice,

Rich

 

[RonaldLarson]

Picked up some PEAK anti freeze pre mix . ethylene glycol and diethlene glycol . Question is can I use this stuff,


says it mixes with everything and should I trust the water its mixed with?? astm d-3306.



Thanks for advice,

Rich

I watched a one hour show featuring Peak AF. They make a better product for our engines called "World". It is important to flush and drain completely before using that product, which is a long term coolant type They use deionized water . Make sure you use diesel rated coolant. While our trucks do not have the V8's cavitation issues, the proper coolant is a far better heat reducer.

 

[Gary - K7GLD]

2001 Q/C, 2wd,auto, tow pkg, 354 LSD, Raven 8' cap, Hadley Air Horns Mt'd on top of cap, Black Genuine grille guard, Chrome hood air deflector, 180 thermo, 4"dd exh, dtt 89% TQ, v/b w/smart box, EZ edge turnbuckled ,RV 275's , amsoil air filter, Mag hi tech auto pan, boost ,egt ,westach fuel press and trans gauges.

Your truck setup as to engine mods looks very similar to mine, other than the A/T - bet it runs GREAT, especially if you tow an RV like I do with mine!

 

[JR]

Peak Global is one of the best universal coolants on the market. An OAT for extended service that is non 2EH and silicate and phosphate free. I flushed my system several times this summer when I replaced my radiator and switched to Peak Global to get away from the annoying 2 year servive intervals

 

[RichB59]

JR and Ron Larson
Thanks for the info I'll go ahead with the flush

Rich

 

[RichB59]

Gary

Truck runs great 125k and almost all towing a light travel trl.

Rich

 

[Ncostello]

"While our trucks do not have the V8's cavitation issues....."

Why wouldn't a Cummins 5.9L suffer cavitation issues? A diesel rated coolant has additives to prevent the effects of cavitation against the cylinder walls in the jacket...due to the high compression detonations causing rapid wall movement and thus cavitation. But it would seem to me the configuration of the cylinders matters much less than what really causes the cavitation erosion to the metal.

 

[Gary - K7GLD]

"While our trucks do not have the V8's cavitation issues....."

Why wouldn't a Cummins 5.9L suffer cavitation issues? A diesel rated coolant has additives to prevent the effects of cavitation against the cylinder walls in the jacket...due to the high compression detonations causing rapid wall movement and thus cavitation. But it would seem to me the configuration of the cylinders matters much less than what really causes the cavitation erosion to the metal.

While I don't know where the earlier reference to V8 diesels came from, just a small clarification for some who might not be aware:

Primarily, because the larger 18-wheeler and industrial diesels use replaceable cylinder sleeves, which have a greater tendency to flex under high-compression power strokes. The Cummins engines in our particular trucks use a cylinder bore that is instead, all part of the engine block - presumably thicker, and considerably less prone to flexing and cavitation under normal operation.

Certainly NO problem using antifreeze that provides cavitation protection in our diesels - just not usually necessary.

 

[drag racer]

I use Peak Global in the Ram and all my other vehicles