Peak BlueDEF Platinum

bill-e

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Anyone here planning on using this new formulation once it hits the shelves? After experiencing performance with my '20 that is similar to my '15's when it was new, I'm kind of thinking that half of my issues with the performance of my 15 is because of the ageing emissions system and this stuff is supposed to produce less build up of deposits on the SCR (that white calcium-looking deposit) caused by the chemical reaction of the DEF fluid.
 
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Rossum

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this stuff is supposed to produce less build up of deposits on the DPF caused by the chemical reaction of the DEF fluid
I think you're confusing the DPF with the SCR cat. The DEF injector is behind the DPF but in front of the SCR cat. So DEF can't possibly cause deposits in the DPF, but it could conceivably do so in the SCR cat itself.

Now DEF has historically been nothing but purified water and urea. In fact, I'm pretty sure the original ISO 22241:2006 standard didn't allow for any other ingredients. That meant that all DEF was basically equal, at least at the time of manufacture. Of course storage conditions and impurities introduced during transport and handling could affect it.

Now doing some digging, it seems Peak is claiming they use a "proprietary additive package", and the original ISO 22241:2006 has been withdrawn and replaced by a 2019 version....

This makes me wonder whether DEF makers managed to talk ISO into allowing some minuscule amount of mystery substance in the product to allow them to make marketing-hype claims? "My DEF is better than your DEF!" Yeah, sure. :rolleyes:
 

Rossum

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PS: Performance issues in a modern diesel that don't involve the ECU throwing fault codes are most likely due to the intake becoming restricted with soot from the EGR, not from a clogged SCR cat.
 

bill-e

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PS: Performance issues in a modern diesel that don't involve the ECU throwing fault codes are most likely due to the intake becoming restricted with soot from the EGR, not from a clogged SCR cat.
So my '15 over the years and miles definitely acted differently during regen than it did when it was new. Regens were much more frequent and longer in duration as the system aged and a number of people spent money having the DEF nozzle cleaned/replaced because of this buildup. I do know that increased backpressure does adversely affect performance and mileage so even if this is not a wonder drug, if it helps reduce the buildup of deposits then that's a good thing. Of course it also depends on what the premium price difference is but spending an few extra bucks for it isn't a concern for me.
 

Rossum

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So my '15 over the years and miles definitely acted differently during regen than it did when it was new. Regens were much more frequent and longer in duration as the system aged and a number of people spent money having the DEF nozzle cleaned/replaced because of this buildup.
Regens involve the DPF, which is ahead of the whole DEF/SCR system.

A clogged DEF injector nozzle can produce SCR-related fault codes, but it won't produce exhaust back pressure.

If Peak wants to sell me a "premium" DEF with a "proprietary additive package", they need to show some actual evidence of benefit, not just marketing hype.
 

hunter1234

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It would be interesting to see how it works after someone uses it for a bit, did a little digging and it looks to be twice the price as their regular DEF.
 

WXman

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"Premium" DEF? Lol. So they only use documented full-blood cat **** and water as opposed to the stray cat **** and water used in the "regular" formula? Lol. That's hilarious. #gimmick
 

HST

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Your better off spending the money on a good fuel additive , the better the fuel burns the less soot .
 

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