Maxima Hi-Test is a concentrated octane booster legal for all types of competition. Hi-Test is an all organic product containing no metal (lead, manganese or phosphorus) compounds. It readily mixes with all gasolines as well as alcohol and nitro mixtures. Hi-Test will suppress detonation and pre-ignition by modifying the burn rate and increasing the auto-ignition temperature of the air/fuel mixture. The use of Hi-Test in your gasoline will eliminate “pinging” and “knocking” and the potentially destructive results of them. It will allow for higher compression ratios and therefore more horsepower.

Hi-Test should be used in concentrations of one to four ounces per gallon of gasoline. One ounce per gallon raises the effective octane number approximately four points, depending on the base gasoline octane. For racing or very high compression engines, or very low quality fuel, higher concentrations of Hi-Test may be required.

Product Info:

• Raises octane level
• Stops knock & ping
• Increases horsepower
• For 2-cycle or 4-cycle use
• Cleans fuel systems

Applications:

• For use with all fuels, including nitro and alcohol mixes.
• Can be used in all 2-stroke and 4-stroke engines. For best results, use in combination with Maxima engine oils.

UK Delivery Charges

Free delivery on all orders £100 and over*

All orders over £100 are delivered FREE*. All orders from the Mega Motorcycle Store are dispatched using secure couriers, which are fully insured and trackable. All customers receive an online tracking number when their order is dispatched, enabling them to track the location of their delivery online.

*Free Delivery over £100 includes mainland UK only. Excludes Northern Ireland.

UK Delivery Charges

• Orders under £100: £4.99
• 24-hour delivery: £5.99
• Saturday delivery: £14.99
• Orders over £100: FREE 48-hour delivery
• Refund charge: £2.99

Our UK delivery charges apply to remote areas such as Shetland and the Highlands. For all other destinations, please add your items to the shopping cart on the website and calculate the delivery costs to your destination.

UK Delivery Times

Orders must be placed before 1pm for same-day dispatch.

Please allow 1-2 working days for delivery within the UK.

For deliveries outside the UK, please allow 5-7 working days.

Next working day delivery cut-off time is 13:00.

Orders placed on a Bank Holiday will be dispatched on the following working day. Deliveries to Ireland and Scotland may take an extra day depending on your location.

Orders placed on a Saturday or Sunday will be dispatched on the Monday. If you have paid for Next Working Day delivery, your delivery will be due on the Tuesday.

European Delivery Since 1 July 2021, most goods to the EU (including gifts) are now subject to VAT and potentially a clearance fee. The taxes and duties applied depend on the individual contents of the parcel, the weight, and the value. We cannot estimate the costs that may occur and we are not responsible for any fees you may need to pay.

To get a shipping quote for your country, please follow the checkout process and input your delivery address.

Terms and Conditions:

Express delivery applies to mainland UK only and cannot be guaranteed for the Scottish Highlands and other isolated areas. Please contact us if you need further details.