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4.6 out of 5 stars. 36 reviews
A woman outside with a dog
A woman outside with a dog

Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster

Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster

Item # 600850599

Stocked & Ready
Hot Shot's Secret Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster
Hot Shot's Secret Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster


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Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster

Item # 600850599

Stocked & Ready
Hot Shot's Secret Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster
Hot Shot's Secret Hot Shot's Secret DEFender Crystal Elimnator & DEF Booster

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Grassland (franklin) TN

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HOT SHOT'S SECRET PREMIUM DEFender is engineered to clean and prevent Diesel Exhaust Fluid (DEF) crystal buildup. Harmful deposits in the Selective Catalytic Reduction (SCR) system can reduce performance, increase fuel use, and lead to costly repairs or downtime. Premium DEFENDER cleans the entire SCR system by dissolving crystal deposits that form in the tank, pump, heater, sender, lines, injector, decomposition tube, reactor and mixer. When the SCR system doesn't operate as intended, engine fault codes can occur and trigger a vehicle to enter "limp mode" where the vehicle will drive slowly, or become un-drivable. Premium DEFENDER restores DEF function, helps to avoid "limp mode," and with regular use maintains efficiency of the SCR. Triple-filtered for purity. Ash and dye-free formula. For use in all SCR-equipped diesel engines including cars, trucks, semis and equipment, will not void OEM warranties when used as directed. Fully compatible with all brands of DEF.

Looking for more information on truck accessories? Check out our guide on truck accessories in the product documents section.

  • Cleans and prevents crystal formation
  • Reduces crystal formation by up to 60%* (By weight, in a 7-day internal lab test compared to untreated DEF)
  • Clears common SCR/DEF trouble codes (see label for details)
  • Restores DEF nozzle spray pattern
  • Reduces downtime and expensive repairs
  • Safe for all SCR systems and Urea AdBlue/DEF fluids
  • 8 oz treats 20 gallons of DEF
  • Only add to DEF/AdBlue. DO NOT ADD TO DIESEL FUEL.

Q&As

1 - 2 of 2 Questions

Q: Will DEFender help brake up crystals on the valves if vehicle has been sitting awhile?

6 months ago
1 Answer
  • A: Hi Neighbor! Yes. It is specifically engineered to dissolve, remove, and prevent the white crystalline urea deposits (crystallization) that form on components such as the DEF injector, doser valve, and within the SCR lines, particularly when a vehicle has been sitting for an extended period.
    6 months ago
    Helpful?

Q: Will Defender help keep def stable throughout the winter with low truck use?

10 months ago
1 Answer
  • A: Hi Neighbor! Yes, this product is designed to keep DEF stable in the winter by lowering its freeze point and preventing the formation of urea crystals.
    10 months ago
    Helpful?

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Reviews

Rating Snapshot

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28 reviews with 5 stars.
4 reviews with 4 stars.
2 reviews with 3 stars.
0 reviews with 2 stars.
2 reviews with 1 star.

Overall Rating

4.6
12 out of 12 (100%) reviewers recommend this product

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1 to 4 of 36 Reviews .
1 – 4 of 36 Reviews
Review 1
Age55 to 64
GenderMale

Cleared my Def codes

16 days ago
I've been using this for the past 6 months I haven't had one error code pop up. prior to using Hot Shot Defender error codes pop up that I was having to have cleared because it said my def system was needing service but ever since buying this stuff and using it every time I add Def I haven't had any issues. I definitely recommended it.

Yes, I recommend this product.

Originally posted on Hot Shot’s Secret

Palmer, Alaska
Review 1
Age35 to 44
GenderMale

It works

2 months ago
My 22 Ram 2500 is not my daily driver.. Sometimes it sits for a few weeks before I use it. I was getting a derate in 150 miles message that would pop up every now and then. I had a DEF quality code. I decided to give this stuff a shot to try and clean the system so I didn't have to go to the dealer who does nothing. It worked. Code and message is gone. Still have 9 months of warranty till the equipment comes off

Yes, I recommend this product.

Originally posted on Hot Shot’s Secret

Review 1

Def Booster

6 months ago
Works excellent was low on Def and truck was sitting for days in Ohio cold weather.engine light came on finally made it to def pump, filled up, withing 200 miles , engine light went off!!! If u drive in sub 0 weather, get this
SweepstakesYes
Review 1

Defender

6 months ago
I'm glad I found this stuff. Seems to work very well. Hopefully. Here, soon the EPA gets rid of the DF and D PF systems. This seems pretty distracted about

Originally posted on Hot Shot’s Secret