Evans Coolant

[Clevelandjim]

I've seen some posts about prepping for Evans coolant. Has anyone installed it? Has it stopped a puker from puking? Any ill effects from installing Evans?

[tasman]

NoBody [img]/ubbthreads/images/graemlins/shrug.gif[/img] [img]/ubbthreads/images/graemlins/shrug.gif[/img] I was wondering this myself. My son has a Mercedes diesel and we put it in his car last weekend and I was wondering if it would be good for the 6.0. If the Evans cure a puker than the higher cylinder pressure would have to be relooked.

TasMan

[moovet]

Puking: deffinition= expulsion of coolant from resivor..
causes:
1. too full resivor
2. faulty cap
3. bad egr cooler
a.flash boiling from too high egts
b.leaks co2 into coolant
4. streetched head bolts, leaky head gaskets allowing co2 into coolant.
Evans will only prevent puking due too flash boiling, other reasons will just be a much more expensive puke...
my 2 cents...perhaps there is more reasons im forgetting at this point anybody feel free too add them...
j.schall

[Clevelandjim]

I don't have a problem now, so I'm more interested in Evans Coolant as preventitve medicine.

Seems to me with a lower flash point there will be less possiblity of pressure lifting the heads or blowing the head gaskets. I'm just thinking less steam = less pressure.

If anyone has cured their puking ills with Evans, I might just throw it in to prevent prolems.

[ralphinnj]

Jay's post still holds. So if you put in the coolant and then add chips/etc., and you raise CP's, it'll puke, doesn't matter what is in there. So I don't think it prevents much except for when you have too high a coolant temperature. And it is expensive!

Another thing to consider is that even if you only have the "coolant too hot" issue, unless you do a lot to accomodate the higher operating temperature that you are running at, running hot like you can with Evans will probably lead to other premature failures. I think it is like an injured athlete taking pain killers.

RL

[caryt]

FYI not a single radiator or waterpump manufactor recomends Evans, in fact they recomend against it. I will get flamed [img]/ubbthreads/images/graemlins/laugh.gif[/img] but don't take my word on it call the manufactors and find out for yourself. Your money would be better spent on a tag [img]/ubbthreads/images/graemlins/smirk.gif[/img] [img]/ubbthreads/images/graemlins/rolleyes.gif[/img] [img]/ubbthreads/images/graemlins/laugh.gif[/img]

Cary

[beetlebarn1]

check out water wetter by redline. This product increases adheasion of the coolant to the metal and should help prevent flashing. I think royale purple also has a similar product. As far as Evans goes, I have seen posts were some folks were using it in their 6 ohs. I opted for water wetter vice Evans. Like you, I wanted to be preventative and have the truck ready for a SCT from Innovative when I've logged enough miles to know I've not got any problems with the motor.

[AutoJim]

Water Wetter and Royal Purple's similar product are basically a surfactant (diswasher detergent, basically), an anti-foaming additive (to keep the detergent from frothing), and a few corrosion inhibitors.

All of which are already present in commercial coolants. In a few dozen scientific tests, I've never seen Water Wetter produce a reduction in coolant temperature when added to an existing coolant mixture. Its main benefit seems to be the corrosion inhibitors when used with straight water in a racing vehicle where a sanctioning body discourages/prohibits the use of glycol antifreeze/coolant because of the hazard it can pose to the track surface. Glycol coolant is harder to clean up and slicker than oil when spilled on pavement.

There's a thread on Water Wetter in the general aftermarket forum.

[Wekiwa]

We put Evans in one of our 05 Tow Bosses just to see if it would resolve the coolant flash boiling issue and it did. The 6.0 hasn't lost any coolant and appears to run slighty cooler. This truck is 100% stock.
The EGR cooler is a screwed up design no matter how you look at it. From a physics point of view, Ford/IH or both should know better than this. To much heat (exhaust gases)and not enough flow (coolant) equals small steam explosions which is what throws the coolant out and all over your engine.
Evans coolant has several properties which help prevent these little problems.

-Where does it say ANY OEM recommends against using Evans? Its chemical & physical properties far exceed Ford Gold money coolant.

BBS forums easily spread false or misleading information simply by "I heard a friend that knows a 2nd cousin......

Wekiwa

[tasman]

Wekiwa
I think the issue was with the older Evans EVANS WATERLESS NPG™ not the NPG+. The think the older NPG is really only recommended for racing applications. I have seem this was discussion before and it has to do something with viscosity and wearing out pumps, as I understood it. The NPG+ addressed the issues with the older version and if you check their sight, you will see that they only recommend the NPG+ for diesels. I was really looking into using the Evans as my vehicle will puke but only under hard load and everything else seems great and it does not seem to get any worse. There have been mixed reviews as to whether head gaskets and studs even fix some engine and most run great but puke. How long have you had the Evans in and have you had the truck in situations that would cause it to puke?

Thanks
TasMan
[ QUOTE ]
We put Evans in one of our 05 Tow Bosses just to see if it would resolve the coolant flash boiling issue and it did. The 6.0 hasn't lost any coolant and appears to run slighty cooler. This truck is 100% stock.
The EGR cooler is a screwed up design no matter how you look at it. From a physics point of view, Ford/IH or both should know better than this. To much heat (exhaust gases)and not enough flow (coolant) equals small steam explosions which is what throws the coolant out and all over your engine.
Evans coolant has several properties which help prevent these little problems.

-Where does it say ANY OEM recommends against using Evans? Its chemical & physical properties far exceed Ford Gold money coolant.

BBS forums easily spread false or misleading information simply by "I heard a friend that knows a 2nd cousin......

Wekiwa

[/ QUOTE ]

[Clevelandjim]

Thanks for the great reponses guys! I'd be very interested in anyone's installed experience too. Higher flash-point Evans coolant just seems like such a good idea on these trucks with their EGR coolers and temperamental head gaskets.

[Wekiwa]

[ QUOTE ]
Wekiwa
I think the older NPG is really only recommended for racing applications.
There have been mixed reviews as to whether head gaskets and studs even fix some engine and most run great but puke. How long have you had the Evans in and have you had the truck in situations that would cause it to puke?

[/ QUOTE ]

Yes, I am referring to the NPG+.

The 05 Tow Boss w/4:30's is worked hard in and around the cities everyday. Dragging a 13Klb gooseneck around loaded keeps it in situations where before it would loose coolant daily. After adding Evans it no longer loses coolant. Our tech installed an EGR gauge to see whats going on and from the driver 1200F is REAL common. Its was changed about 8000 miles ago.

Its only my theory but it seems some EGR systems aren't flowing enough coolant for some reason. It just seems strange that some 6.0's never lose coolant and others will just driving around the block?
Adding insult to injury, some 6.0's have bad or impropoerly installed head gaskets.

This winter my 6.0 will be removed for a few "upgrades" and we plan to test the EGR for pressure drop in order to test my theory. If I can complete a little project I'll post the results if positive.

Wekiwa

[tasman]

Wekiwa
That is good information to know. I assumed you were using NPG+, my statement was to the other guys saying that no radiator or water pump manufacturer recommended Evans; guess I worded poorly. I have to take mine in for updates and I will point it out again, incase it gets worse later. Mine does puke but runs fine and I do not get cross contamination, have done oil analysis every oil change. If they do not come out with fix soon, I may try Evans.
Thanks again, this is why I love this sight [img]/ubbthreads/images/graemlins/smokin.gif[/img].
TasMan
[ QUOTE ]
[ QUOTE ]
Wekiwa
I think the older NPG is really only recommended for racing applications.
There have been mixed reviews as to whether head gaskets and studs even fix some engine and most run great but puke. How long have you had the Evans in and have you had the truck in situations that would cause it to puke?

[/ QUOTE ]

Yes, I am referring to the NPG+.

The 05 Tow Boss w/4:30's is worked hard in and around the cities everyday. Dragging a 13Klb gooseneck around loaded keeps it in situations where before it would loose coolant daily. After adding Evans it no longer loses coolant. Our tech installed an EGR gauge to see whats going on and from the driver 1200F is REAL common. Its was changed about 8000 miles ago.

Its only my theory but it seems some EGR systems aren't flowing enough coolant for some reason. It just seems strange that some 6.0's never lose coolant and others will just driving around the block?
Adding insult to injury, some 6.0's have bad or impropoerly installed head gaskets.

This winter my 6.0 will be removed for a few "upgrades" and we plan to test the EGR for pressure drop in order to test my theory. If I can complete a little project I'll post the results if positive.

Wekiwa

[/ QUOTE ]

[AutoJim]

[ QUOTE ]
-Where does it say ANY OEM recommends against using Evans? Its chemical & physical properties far exceed Ford Gold money coolant.

[/ QUOTE ]

See that bit in the owner's guide that says something to the effect of "don't use propylene-glycol-based coolants"? That's the part. They don't name names, they name types. There's a TSB that's renewed every year that says basically the same thing.

At this time, I am not aware of *any* automotive OEM or automotive engine manufacturer in the world that recommends propylene glycol coolants. Quite the contrary, most recommend *not* using propylene glycol coolants.

This is not based on internet rumor or random bulletin board postings, but from actually reading the OEM specifications -- and building parts for them. When you make your living designing automotive water pumps, it helps to know what fluid you're being asked to pump...

GM's still using DEXCOOL, most other automotive and light truck OEMs (Ford included) are using G-05 or a minor variant of same, and the big-truck and engine OEMs are using some form of LLC, typically OAT but a different mix than DEXCOOL's OAT. The common thread is that they're *all* ethylene-glycol based.

Yes, I'm well aware that Evans NPG+ is some sort of witches' brew of PG and EG. It's still primarily PG.

[Clevelandjim]

Autojim,

Just to press the issue a little, and since you are the cooling guy, What is the downside to using propylene-glycol-based coolants? What's going to break?