Description
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PRI-D is a super concentrated, complete diesel fuel treatment for refiners, suppliers & commercial diesel consumers that improves all standard distillate grades, & is especially formulated to overcome the degraded lubricity & thermal stability characteristics of severely hydrotreated 0.1% MGO marine fuels & ultra low sulfur (ULSD) diesel fuels.
PRI-D reacts with fuel upon contact, providing greatly enhanced fuel lubricity & deposit control benefits demanded by today’s engines. The laboratory & field proven benefits are multiple:
● Peak firing pressure (pmax) is boosted as much as 4 bar
● Specific fuel consumption is reduced as much as one percent
● Carbon & fuel system deposits are inhibited
● Fuel injection pump wear is reduced as much as 45 percent
● Fuel stays fresh, ignition quality improved. Degraded fuels are restored.
● Tanks & fuel lines remain free of slime & sludge
● Carbon monoxide (CO), unburned hydrocarbons (HC) & particulate matter(PM) are significantly reduced
Improved Performance, Maintenance, & Emissions Reductions– CARB/EPA & power plant testing verifies PRI-D capability to improve the combustion process for optimum, long-term engine performance & efficiency & emissions reduction.
Maximum Lubricity Protection – The refinery-grade lubricity additive package of PRI-D is the most effective & safest available today based on extensive oil industry research & field performance experience.
Keeps Fuels At Peak Stability– PRI-D not only prevents fuel degradation in long-term storage, degraded fuels are restored to refinery freshness.
Super Concentrated & Safe – PRI-D is super concentrated & cost effective, treating fuel at a 1:2,000 ratio (500 ppm). PRI-D contains no potentially damaging cetane improvement additives, metals or harsh solvent chemistries, meeting all major engine manufacturer fuel specifications.




mtdigger –
I put this in my diesel truck tank that had been sitting for over a year, it fired up right away and has been running fine
Cyrus D. Harding –
This is the best diesel and the PRI-G is the best gasoline stabilizer you can buy. In my opinion, the rest are made to stabilize fuel in the fuel tank on the machine over the winter. This is a serious refinery grade stabilizer.
Charlotte –
Friend is happy with product, says it helps his 2006 Chevy 2500 HD.
James S. –
I find it very odd that the product has a “sealed for your protection” cap and the seal below it is punctured and around the main cap is a piece of taped saying sealed to prevent spills. Why would it need the tape around the threaded cap if the internal pull seal was intact? I am very concerned that the product was replaced by something harmful, so I am returning it. Probably going to leak on the way back since the outer cap tape has been removed.
Ellen R –
exactly what we needed
David S. –
U tube review positive
Kindle Customer –
The best fuel treatment and preservative on the market. I have been using PRI products for two decades and not only does it preserve the fuel but it prevents sludge and buildup of deposits in carburetors and injectors. If you store fuel it is a a must have and is very cost effective.
Tom –
I got my order in timely manner . It was what I wanted thank for the service I will keep using Amazon Prime