What octane will this raise 87 gas to? i need 90 for my atvs but only 87 is sold here in non-ethanol

According to the Rislone website this will raise the Octane 20 Points.......

Why is buying a case of 12 more expensive than a single purchase?

I never noticed that but you’re correct. When buying a dozen you spend about $4.00 a bottle. I’d order 12 single bottles & see if they’ll sell them that way.

What are the contents? What does it have in it?

Contains the highest concentrate of MMT Methylcyclopentadienyl Manganese Tricarbonyl allowed for street use. This product also restores lost horsepower and performance. Has an Antiknock formulation that stops engine knock and pings caused by low quality fuel.

Can I use this for Harley morotcycle? How much for 6 gallon tank?

Yes can use it. For smaller engines use 1⁄4 bottle for every 5 gallons. For larger vehicles use 1 bottle per 18 gallons of fuel capacity, or 1 oz per 3 gallons.

Rislone Hy Per Fuel Octane Booster 6 Fl Oz 1

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Description

⛽ Elevate your fuel game—because your engine deserves premium power!

POWER UP YOUR RIDE - Increases octane rating to eliminate engine knock and hesitation for smoother, more powerful performance.
VERSATILE FUEL SUPPORT - Works seamlessly with gasoline, ethanol E10, and E15 blends—ideal for modern and classic engines alike.
ENGINE HEALTH INSURANCE - Safe for catalytic converters and oxygen sensors, helping keep your engine components cleaner and longer-lasting.
FUEL EFFICIENCY BOOSTER - Optimizes spark timing to improve fuel mileage, saving you money at the pump over time.
UNIVERSAL COMPATIBILITY - Nozzle design fits all fuel tanks, including capless systems—perfect for any vehicle in your garage.

Rislone Hy-per Fuel Octane Booster is a 6 fl. oz. universal-fit additive that raises your fuel’s octane by up to 2 points, reducing engine knock and improving power and fuel efficiency. Compatible with gasoline and ethanol blends up to E15, it treats up to 20 gallons per bottle without harming catalytic converters or oxygen sensors. Designed for all vehicles, from muscle cars to hybrids, it ensures optimal engine performance and cleaner operation.

Specifications

ASIN	B00DTONKJ2
Best Sellers Rank	405,522 in Automotive ( See Top 100 in Automotive ) 900 in Fuel Systems
Brand	Bar's Leaks
Customer Reviews	4.5 4.5 out of 5 stars (1,444)
Date First Available	5 July 2013
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Item Weight	181 g
Item model number	4747
Manufacturer	Rislone
Manufacturer part number	4747
Model	4747
Product Dimensions	4.29 x 4.29 x 22.58 cm; 181 g
Voltage	12 Volts

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