Good Sam Club Open Roads Forum: Tow Vehicles: Peak Blue Platinum DEF
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 > Peak Blue Platinum DEF

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BB_TX

McKinney, Texas

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Posted: 09/21/20 08:40pm Link  |  Quote  |  Print  |  Notify Moderator

Deposits 1

Deposits 2

Deposits 3

Deposits 4

Deposits 5

BB_TX

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Posted: 09/21/20 08:46pm Link  |  Quote  |  Print  |  Notify Moderator

Edd505 wrote:

RobWNY wrote:

It sounds good. I'm interested in learning what the cost will be and it would be nice if the shelf life was greater than the 18 months regular Blue DEF provides.

Shelf life? Fill at the truck stop $2.99 a gallon and always fresh, refill as needed.

That you get at the pump is never completely fresh. They just pour the new into the tank on top of the old and it all gets diluted. The old just keeps getting more diluted each time but never completely goes away. So you end up with multiple ages of DEF all mixed together.
Better or worse than the jug? Who can say?

ktmrfs

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Posted: 09/21/20 09:58pm Link  |  Quote  |  Print  |  Notify Moderator

since def is defined by standards in what it must consist of and only consist of, I find it hard to believe they can or did add anything else.


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stickdog

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Posted: 09/21/20 10:34pm Link  |  Quote  |  Print  |  Notify Moderator

Come on guys, you have $60, $70G invested in your tow what's $2.00 $3.00 more to protect your investment.


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naturist

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Posted: 09/22/20 06:12am Link  |  Quote  |  Print  |  Notify Moderator

stickdog wrote:

Come on guys, you have $60, $70G invested in your tow what's $2.00 $3.00 more to protect your investment.


Good arithmetic only if it actually works. If it doesn’t, it is still a waste of good money. And frankly, as a retired chemist, I, too, see zero cause to believe this is anything more than marketing hype.





IdaD

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Posted: 09/22/20 06:56am Link  |  Quote  |  Print  |  Notify Moderator

BB_TX wrote:

Edd505 wrote:

RobWNY wrote:

It sounds good. I'm interested in learning what the cost will be and it would be nice if the shelf life was greater than the 18 months regular Blue DEF provides.

Shelf life? Fill at the truck stop $2.99 a gallon and always fresh, refill as needed.

That you get at the pump is never completely fresh. They just pour the new into the tank on top of the old and it all gets diluted. The old just keeps getting more diluted each time but never completely goes away. So you end up with multiple ages of DEF all mixed together.
Better or worse than the jug? Who can say?


The only places I've seen DEF at the pump are higher volume truck stops so it stands to reason they turn it over pretty quickly, and it would pretty heavily dilute the older stuff I'd think.

When it comes to DEF I'm all about convenience. Since Costco started carrying Peak Blue, that's mostly what I use because I'm there every week. I have no issues with Walmart or Pump DEF, though - it's all the same stuff.


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RobWNY

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Posted: 09/22/20 07:45am Link  |  Quote  |  Print  |  Notify Moderator

My local LOWES has regular Blue DEF for $12.98 and Platinum Blue DEF for $19.98 in the 2.5 Gallon box


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agesilaus

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Posted: 09/22/20 07:52am Link  |  Quote  |  Print  |  Notify Moderator

Walmart has DEF for $7, and it is the same stuff as the $13 DEF and probably the same as the $20 material. And so it would be $13 a bottle more not 'a couple of bucks" almost three times the $7 stuff.

As PT Barnum supposedly said: "There is a sucker born every minute." And that's when the population was much lower the rate is probably one every few seconds these days. Especially with the stupidification of the schools.


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ACZL

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Posted: 09/22/20 08:19am Link  |  Quote  |  Print  |  Notify Moderator

RobWNY wrote:

My local LOWES has regular Blue DEF for $12.98 and Platinum Blue DEF for $19.98 in the 2.5 Gallon box


Holy smacka-roonies !!!!! Think pump price for DEF last week was $1.99/gal where I get fuel.


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BB_TX

McKinney, Texas

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Posted: 09/22/20 08:39am Link  |  Quote  |  Print  |  Notify Moderator

If you take time to read thru the links I posted above, you will see that deposits from DEF into the SCR system is a long known problem. If the liquid atomized particles hit a hot surface and dry before they evaporate they will form deposits. And over time the build up of those deposits lead to problems of possible back pressure. And that would lead to reduced fuel economy. Those of you with chemical backgrounds may understand the whole process from reading the articles.

From the links above there are multiple mechanical attempts being tested to reduce those deposits. Obviously the new Peak DEF doesn't do anything to the mechanical aspects of the system. But somehow manipulating the chemical aspects of the DEF might increase the evaporation rate and reduce the deposits. Obviously a better DEF would be cheaper solution than a mechanical modification to the system.

No more DEF than I use in a year's time the small amount of money for the new and improved "Platinum" DEF is nothing and I will begin using it until proven otherwise.

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