PRI CP122 Pri-G Gasoline Treatment - Restores Fuel and Stabilizes

In this review the PRI CP122 Pri-G Gasoline Treatment is evaluated for small engines, marine craft, motorhomes and seasonal equipment that uses gasoline, including E-10 blends. The bottom line: this concentrated additive is worth considering if you need to restore old or degraded fuel and keep gasoline stable for long storage; the single biggest reason to buy is its ability to revive degraded fuel and provide dependable long-term fuel storage capability. The review draws on product features and customer feedback about fuel retention, engine smoothness and overall value.

Key Features

• Improves ignition quality: Helps deliver more reliable starts and crisper throttle response by improving fuel ignition characteristics.
• Removes deposits: Formulated to address engine and fuel system deposits so injectors and carburetors run cleaner over time.
• Protects against E-10 phase separation: Specifically useful for ethanol-blended gasolines to reduce the risk of water separation and fuel degradation.
• Long-term fuel storage capability: Enables fuel to remain usable for extended storage, supporting seasonal equipment and stored vehicles.
• Restores degraded fuels: Can bring old or stale gasoline back to usable condition, extending the life of remaining fuel in tanks.

Who It's For

This treatment is best for boat owners, RV and motorhome users, classic car keepers, and anyone who stores gasoline for months at a time and needs dependable starting and operation after storage. It is particularly relevant for users of small engines where fuel quality and ethanol effects are common concerns.

Users who expect instant dramatic power gains or who require a product designed exclusively for diesel engines should look elsewhere; this formula is targeted at gasoline applications and E-10 protection rather than diesel-specific systems.

Pros & Cons

Pros

• Effective fuel stabilizer that customers report keeps motorhome fuel usable for up to 1-2 years.
• Restores many degraded fuels to freshness, improving engine smoothness and idle quality.
• Protects against E-10 phase separation, reducing the ethanol-related risks in blended fuels.
• Perceived as good value for money by users who rely on long-term storage and reliable starts.

Cons

• Not formulated for diesel engines, so it is unsuitable for diesel-specific fuel systems.
• Results depend on the degree of fuel degradation; heavily contaminated fuels may not be fully restored.

Specifications

Product name	PRI CP122 Pri-G Gasoline Treatment - 32 oz.
Volume	32 oz
Application	Gasoline, including E-10 blends
Primary benefits	Ignition improvement, deposit control, E-10 protection, long-term storage
Concentration	Super concentrated formula
Typical uses	Marine engines, motorhomes, seasonal equipment

Our Verdict

PRI CP122 Pri-G is a focused gasoline treatment that delivers tangible value for owners of boats, RVs and stored equipment who need fuel stabilization and deposit control. It restores many degraded fuels and protects against E-10 issues, making it a sensible buy for long-term fuel storage and improved ignition reliability.

Frequently Asked Questions

Can this treat ethanol blended fuels like E-10?
Yes. The formula is specifically described as protecting against E-10 phase separation and is intended for ethanol-blended gasoline.

Will it revive old fuel that smells stale?
Customers report the treatment restores many degraded fuels to freshness and keeps stored fuel usable for extended periods, though severely contaminated fuel may not be fully recovered.

Is this suitable for diesel engines?
No. This product is formulated for gasoline applications and is not intended as a diesel additive.