Fuel Treatment For Generators – Best Fuel Additive

Best Fuel Additive For Generators

Not only do you have your own generator for a power outage, there are tens of thousands of generators at the ready in a wide variety of settings such as hospitals, airports, cell phone sites, internet service providers, fire and police stations, large apartment buildings, office buildings, data & telecommunication centers, drinking water pumping stations, nuclear power plants, and many more…

When you need it the most, your generator might not start – because you didn’t treat it with any fuel additive…

PRI-G (Best Fuel Treatment For Generators)

The weakest link in these generators is the fuel which often sits unused or not rotated for many many months or longer.

The problem is, the generator may become ‘gummed up’ or won’t run due to old fuel sitting in the tank, lines, fuel filter, carburetor, and even your fuel cans. Many of these perfectly good generators will fail when they are needed most – because of old fuel.

Most fuel will maintain optimum freshness for ~ 3 months in good storage conditions.

Unfortunately, this relatively short shelf life can be very bad for backup generators.

There is a solution to this problem however:



Fuel treatment with fuel stability additives.

There are many fuel additive treatments to choose from and they are available at automotive stores, hardware stores, etc..

Many of them are formulated to keep fuel fresh for 6 months up to 1 year.

While that’s pretty good, I’ve found a fuel additive that’s even better:


I can’t tell you what to do, however I strongly suggest that you get some. It’s worth it!

Why? Because you invested a lot of money in that generator. You need it to reliably start up when you need it most.

The PRI-G fuel additive listed above will treat 256 gallons of gasoline!

Treat the fuel in your gas cans for assured shelf life longevity.

Having researched this issue, I have come to the conclusion that PRI-G fuel additive is apparently better than the rest. And while it costs a bit more than the others, it will treat fuel for years without issue.

The company is called Power Research Inc., and they make a product line under the name PRI-Products.

( PRI-G ) Gasoline Fuel Additive
( PRI-D ) Diesel Fuel Additive


If you look for fuel treatment at your local stores, there’s one brand often seen:


I have used STA-BIL fuel treatment myself for some time (with no problems), although I have always rotated or used my fuel storage well before one year.

I have since discovered that the PRI products (sold separately for diesel and gasoline) and their specifications and research claims – are apparently superior than any other, and I switched to them some time ago – for even longer fuel shelf-life (just in case).

If you have a portable generator, take care of it!

– Use treated fuel to avoid gummed up carburetor, fuel lines
– Optionally drain the fuel from generator tank
– Switch off fuel line valve to run the generator ‘dry’
– Start it up at least once every several months
– Check the oil!

More: Generator Maintenance For Preparedness
More: Best Extension Cord For Your Generator
More: Generator Safety



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