StictionRx is the best oil additive for Ford Powerstroke 6.0 and 7.3 Engines
Stiction Rx has been tried and tested to treat and eliminate what is known as "Stiction" in Diesel Fuel Injectors. This issue is common on the 6.0 and 7.3 Ford engines and is caused mainly by sticking spool valves and friction within the injector oiling chambers.
We based this blend on our very popular Oil Fortifier and upped the detergent package with Boron to further clean the top part of these injectors and other components like the oil cooler.
Non-Hazardous When Used As Directed. Stiction Rx sold as 16oz Bottle (see treatment rates for first use)


- Weight:
- 2.00 LBS
- Width:
-
5.00
(in)
- Height:
-
5.00
(in)
- Depth:
-
10.00
(in)
StictionRx 1st or 2nd Time Use Cleanup Treatment Rate:
Replace 32 ounces (1 Quart) of motor oil with Stiction Rx at Oil Change. (2 bottles)
StictionRx Regular Maintenance Treatment Rate:
Replace 16 ounces (1/2 quart) of motor oil with Stiction RX at Oil Change to maintain engine performance. (1 Bottle)
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How from Texas. It was 10* here this morning- a record I think - during this massive cold snap. Left my truck UNPLUGGED overnight to put your stiction treatment to the test. Glow plugs burned for a little over a minute. odometer reads over 235K. It cranked up first time, as if it were a summer day!
Y’all make some good stuff in that little bottle!
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As a business owner and mechanic we’ve seen it all. We recently had a vehicle with cylinder imbalance codes on multiple cylinders, we see it all the time and it normally translates into thousands of dollars worth of injector replacement. This vehicle was different from the standpoint of having high performance 190/100 injectors in it, and it being my personal vehicle. I called over to Mathew at Bitter Root diesel and explained my problem, he told me to try the stiction RX, and added I wouldn’t be disappointed. I figured what the heck do I have to loose? Gave it a try and, OH MY LORD! It worked, almost immediately! Within a few minutes this performance built diesel was running so smooth and noticeably quieter. Im 100% a customer for life. Thank you Opti-Lube for making an honest product that does what it says it will.
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For years, I used a competitors product (starts with an A) that's $40 per treatment. This does the same thing for less than half the price. I'm already running Opti-Lube products (XL and Boost) in my 6.0 Powerstrokes, so this was a no-brainer. As long as this product stays at this price point, it's going in my oil every time I service my 6.0's.
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Put this in my 2012 MBz E350 Bluetec with 37,000 miles on it and Wow, the MPG increased 10%. Added 1 oz per quart of Mobile Delvac 1 ESP 5W-40 Full Synthetic Motor oil (8 oz Oil Fortifier per 8 Quart of oil). The Optilube XPD diesel fuel additive was OK but this Oil Fortifier is magic.