TetraBOOST E-Guard 15 Fuel Additive With Ethanol Protection & Lead Additive
TetraBOOST E-Guard 15 is not just another fuel additive with lead replacement, it is the only additive which contains Tetraethyl lead which converts unleaded fuel into true 4 star or 5 star leaded fuel for use in classic and vintage cars. It also includes Ethanol protection which prevents damage to rubber fuel components in older vehicles caused by Ethanol present in modern unleaded fuels.
- Converts unleaded fuel into real 4 or 5 star leaded fuel
- Prevents pre ignition and valve seat recession in classic and vintage engines
- Boosts octane up to 106 RON
- Slows fuel burn rate for improved combustion which provides better throttle response and engine pick up
- Prevent Ethanol damage to fuel system components
- Suitable for road or Motorsport use
TetraBOOST E-Guard 15 is a solution containing tetraethyl lead in aromatic hydrocarbons combined with chemical scrubbers which when added to unleaded pump fuel converts it to a true leaded fuel suitable for older engines with soft valve seats which require the added lubrication from leaded fuel. E-Guard 15 also boosts the fuels octane between 2 and 7 points depending on the base fuel and mix ratio. For example, when added to 95 octane unleaded pump fuel at a ratio of 110:1 (100ml per 11.5 litres of fuel) it produces 97 octane 4 star fuel. When added to 99 octane Shell V-power at the same ratio is produces 101 octane 5 star fuel or if a 66:1 mix ratio is used (100ml per 6.5 litres of fuel) it produces 102 octane 5 star plus fuel. When mixed with Shell V-power at a ratio of 10:1 E-Guard 15 can produce a leaded fuel with 106 octane ideal for race engines.
Simply add the required dose of E-Guard 15 to your fuel tank prior to filling up at the pump. Please note: For vehicles with foam filled fuel tanks or 'bag' tanks mixing must be done in a separate container and agitated before adding to the fuel tank.
TetraBOOST E-Guard 15 is NOT suitable for vehicles fitted with catalytic converters.
945ml bottle (treats up to 108 litres of fuel)
| Brand | TetraBOOST |
| MPN | TET15945 |
UK Mainland Delivery Prices
| Delivery Type | Cost | Estimated Delivery Time |
| Standard Delivery | from £1.33 | 2-3 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Express Delivery | from £1.68 | 1-2 working days from day of despatch(Excludes weekends and Bank Holidays) |
| Special Delivery | from £12.54 | For any next working day delivery order before 4.30pm Monday to Thursday. For any weekend delivery order before 4.30pm Friday |
| Click & Collect | from £7.62 | Collect your parcel from a local post office. 2-3 working days from day of despatch(Excludes weekends and Bank Holidays) |
For international shipping please visit our delivery page.
For information about returning an item please visit our returns page.
Our Payment Options
Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.
Finance Options
In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
D.T.(Automotives) Limited T/A Demon Tweeks is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance and Klarna. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.
