great product for high compression engines. your image is ancient, packaging changed a decade ago
PJ1 Gas Energizer Octane Plus - 1/2-Liter
PJ1 Gas Energizer Octane Plus is a fuel additive for V-twin motorcycles that raises octane rating by approximately 4 numbers while providing lubricating qualities similar to lead. Reduces engine knock and ping, improves efficiency, and cleans carburetors and fuel injectors.
Features
- Raises octane number approximately 4 numbers
- Reduces engine knock and ping
- Lubricating qualities similar to lead
- Cleans carburetors and fuel systems
- Improves overall engine efficiency
- DO NOT use with methanol-blend fuels
Specifications
- Brand: PJ1
- Manufacturer Part #: 13-16
- UPC: 023159013165
- Container Size: 1/2 Liter
- Weight: 0.94 lbs
- Dimensions: 2.55 in (L) × 2.55 in (W) × 7.65 in (H)
Fitment
For all V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.
Frequently Asked Questions
How much octane boost do I get per bottle?
Raises octane number by approximately 4 numbers per 1/2-liter bottle added to a full fuel tank.
Can I use this with ethanol or methanol blends?
No — this product is incompatible with any methanol-blend fuels. Use only with conventional gasoline.
Will this help with engine knock?
Yes. The octane boost and lead-like lubricating qualities reduce knock and ping, improving performance on higher-compression engines.
Does this clean fuel injectors?
Yes — it cleans both carburetors and fuel injection systems as it flows through your fuel system.
How often should I use it?
Use once per fuel fill-up, or as needed to prevent knock on high-compression or modified engines.
| BRAND | PJ1 |
| TYPE | Chemicals |
| SKU | 57-1316 |
| WEIGHT | 0.94 lb |