Shop OBEX P1 Docs P2 Docs Learn Events
SCRs and DEF: $2.69/gallon — Parallax Forums

SCRs and DEF: $2.69/gallon

ercoerco Posts: 20,259
edited 2012-10-30 11:27 in General Discussion
Maybe I'm the only person who didn't know what DEF is. On my recent cross-country drive, I kept seeing "DEF at the pump" at large gas stations (travel stops) for $2.69 a gallon. What the heck...?

And you thought you knew what SCR stands for? Selective Catalytic Reduction!

A quick wiki search said "Diesel Exhaust Fluid", http://en.wikipedia.org/wiki/Diesel_Exhaust_Fluid
Some type of urea-based fluid (ick) which is injected into diesel engines to limit exhaust emissions. So human emissions can control machine emissions...

Based on the gallon-sized coffee mugs I saw many truckers refilling inside these fuel stops, they might be able to save money and eliminate the middleman and have a "direct injection" line from the driver's seat directly to the diesel engine.

Am I sitting on a million-dollar idea? :)

Comments

  • mindrobotsmindrobots Posts: 6,506
    edited 2012-10-28 06:19
    You might have a winner here. When you drive along the inter-state you often see full (refilled) plastic jugs of various types that appear to contain apple juice....it's NOT! It's pre-DEF!! So if you could find a way to um, "harness" that production facility, you could directly recycle the pre-DEF into DEF. I'm sure a propeller could drive an extraction monitor of some sort and several injectors.

    Can't wait to see this on Kickstarter!!

    P.S. doesn't Phil have a diesel? Maybe you could borrow it for testing!
  • ercoerco Posts: 20,259
    edited 2012-10-28 07:44
    As a long distance bicyclist who has logged many miles on the road, I can attest that the two most often-encountered obstacles on the shoulder of the road are bungee cords and coke bottles full of some mysterious yellow fluid. :)
  • mindrobotsmindrobots Posts: 6,506
    edited 2012-10-28 07:46
    Sounds like those bottles might contain "liquid gold" with your new plan!!
  • skylightskylight Posts: 1,915
    edited 2012-10-29 16:18
    It may reduce emissions but I bet it pongs!
  • CircuitsoftCircuitsoft Posts: 1,166
    edited 2012-10-30 08:38
    Pongs? Are you referring to preignition? I've always called that pinging. Oh, and diesel engines only ping.
  • skylightskylight Posts: 1,915
    edited 2012-10-30 09:55
    Circuitsoft wrote: »
    Pongs? Are you referring to preignition? I've always called that pinging. Oh, and diesel engines only ping.
    :smile: Must be another language goof by myself, I was referring to the clothes peg on nose type of pong
  • xanatosxanatos Posts: 1,120
    edited 2012-10-30 11:27
    Interesting side note: One of the products I design and manufacture is a DEF dispenser. Basic-Stamp powered...
    http://www.easternstates.com/CustomControlDesign/downloads/FluidDockBrochure.pdf
    And the DEF fluid shouldn't be yellow... :-) It's clear to slightly bluish (at least in the huge cubes they pump from!)

    Dave
Sign In or Register to comment.