Primrose 406 Gasoline Injector Perfector

Rated 4.85 out of 5 based on 13 customer ratings
(14 customer reviews)

$9.95


FREE SHIPPING on every order (Contiguous US)

FREE with ALL ordersBe a part of the science, limited time! FREE BOTTLE OF GASOLINE FUEL ADDITIVE WITH EVERY PURCHASE. Be the FIRST to test our new one tank gas injector cleaner!

Performance Characteristics:

Cleans Fouled Injectors & Intake Valves
 Injector Perfector Removes Combustion Chamber Deposits
Improves Entire Air/Fuel Induction System
 Gasoline Injector Cleaner Reduces Exhaust Emissions
Delivers Increased Power & Economy
Injector Perfector eliminates Knock & Ping
Eliminates After-Running
Decreases Engine Octane Requirements

SKU: PRIMROSE:P040612Z

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4.85 out of 5 stars

14 reviews

Let us know what you think...

What others are saying

  1. joel_30_k

    5 out of 5 Best fuel cleaner ever!!

    joel_30_k (verified owner)

    My rdx has super clean injectors once again. I will always have this on hand, i promise! I also cant wait to put the One Tank Fuel Cleaner in my ride. I just now need you guys to make synthetic 5w30 and my whole ride will have Hot Shots fluids in it!

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    • Levi

      Levi

      Thanks! Stay tuned…!

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  2. Jimm

    4 out of 5 I do think it works

    Jimm (verified owner)

    I purchased the fuel cleaner the first time and tried it on a 1989 Chev 350 ci engin2 in a pick up used to haul a race car. It seemed to have more pickup and cleaner acceleration under load, so I purchased again for a V6 Sonata with 142k miles. Again an improvement in smooth running at speed after a full tankful plus some. Now going to try in a newer Hyundai turbo engine to see what happens.

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    • Levi

      Levi

      Thanks Jimm, keep us posted!

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  3. RON SANDROFF

    RON SANDROFF (verified owner)

    WORKED FOR ME. ROUGH RUNNING 4.7 JEEP GAS. 2004 GRAND CHEROKEE. STARTS AND RUNS MUCH SMOOTHER. MORE POWER. THIS ENGINE HAS STICTION PROBLEMS AND THROWS CAM FOLLOWERS. NO MORE, AFTER TREATING WITH STICTION ELIMINATOR AND PRIMROSE 406. DON’T HAVE TO JUNK IT NOW. NOW TO TRY FR3 ON THE DIFF. CLUTCHES.

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    • Levi

      Levi

      Thanks Ron, keep us posted!

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  4. Ernest Asebedo

    5 out of 5 2010 Equinox

    Ernest Asebedo (verified owner)

    The product made a noticeable difference in the engine performance. Smother idling is most noticeable. Better throttle response, a slight improvement in mpg but better mpg on long distance journeys. It’s better than over products I have used.

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    • Levi

      Levi

      Thanks Ernest!

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  5. jimm murray

    4 out of 5 I am pleased with this

    jimm murray (verified owner)

    I have not trusted any fuel cleaner to work over the years, but decided to try this based on the reputation of the company. I am pleased with the first tank of gas with the “clean out” amount added, it felt like it was slightly surging as I accelerated on the interstates. I am finishing up a second tank of gas with my normal driving around town and am seeing a positive mpg difference. Will now buy more and try our other two cars with it.

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    • Levi

      Levi

      Thanks, keep us posted!

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  6. Kenneth bond

    5 out of 5 The best dam stuff on earth

    Kenneth bond

    I’ve used it in the past

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    • Levi

      Levi

      Thanks Kenneth!

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  7. Guillermo Saddler

    5 out of 5 This is by far the best in tank injector cleaner I've ever used!

    Guillermo Saddler (verified owner)

    It’s a great product, it just works! Within the first 50 miles I noticed a smoother idle and better throttle rsponse.

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    • Levi

      Levi

      Thanks Guillermo!

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  8. Jake smith

    5 out of 5 Primrose 406

    Jake smith (verified owner)

    Great product, will reorder agean

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    • Levi

      Levi

      Thanks!!

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  9. Wen H

    Wen H (verified owner)

    Did the job

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    • Levi

      Levi

      Thanks!

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  10. Mike

    Mike

    I will definitely order again!

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  11. JasonS.

    Question

    JasonS.

    Have you done a comparison test with ams oil ? there product P.I. Performace improver gasoline additive ? i am curious about the results , so i know witch one to buy and it would be nice to see how it stacks up

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    • Levi

      Levi

      Not specifically with Amsoil gasoline products. We will definitely add it to the list Jason, stay tuned!

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  12. Robert Hawthorne

    Awesome product

    Robert Hawthorne (verified owner)

    Truck runs better every tank of fuel

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  13. One person found this helpful
    Anthony E Joslin

    5 out of 5 Works!

    Anthony E Joslin (verified owner)

    After the treatment the vehicle ran better on the next tank of gas and got better fuel mileage !

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  14. OSCAR

    5 out of 5 GENIUS PRODUCT

    OSCAR (verified owner)

    KEEP THE GOOD WORK

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  15. One person found this helpful
    Barry Bishop

    5 out of 5 Great Product!

    Barry Bishop

    This injector cleaner is the best additive I have ever used and does precisely what it claims to do. I used it on three different vehicles and the result was the same in each one. Be prepared to see fuel economy drop fairly drastically on the tank of fuel you put this additive into; my mileage dropped 30% – 35%. I presume this is due to the fact that all the crud this dissolves on the fuel components reduces the burning efficiency of the gasoline going into the engine. Once you have run through that first tank of fuel though, the mileage on the subsequent fill ups went up 15% – 20%. If you REALLY want to increase it further, the new FR3 oil additive will bump up the fuel economy even further, increased your available horsepower, and make your engine run much smoother than before. Every item I have purchased from Lubrication Specialties has been top notch and has performed exactly as stated. They know their products inside and out and are quick to offer as much technical information and performance data as you could possibly want. And with fast, affordable shipping (often free!), I think you would be hard pressed to find a better supplier for your additive needs than Lubrication Specialties; these guys really are AWESOME! As for me, I am a very satisfied customer as well as a customer for life.

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  16. keith m

    primrose 406

    keith m (verified owner)

    great product

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  17. One person found this helpful
    Lidia

    5 out of 5

    Lidia

    Heck yeah this is exltacy what I needed.

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