Frequently Asked Questions

TetraBOOST E-guard 15 is a fuel additive with real lead. It adds lead compounds (tetraethyl lead) to gasoline to improve the anti-knock properties of the fuel. In addition, it neutralizes ethanol in modern fuel to prevent engine damage to classic vehicles.

Yes. Leaded fuel has been the standard for engine maintenance for more than 100 years. TetraBOOST E-guard 15 makes real, authentic leaded fuel, so it can’t be beat when it comes to taking care of your cherished cars and motorcycles. TetraBOOST E-guard 15 was analyzed and approved by the FBHVC (Federation of British Historic Vehicle Clubs) in 2001. Our product has been extensively tested and proven to be completely effective in stopping signs of valve seat wear. TetraBOOST E-guard 15 has been used on the track since 2000 and the results speak for themselves.

Lead was previously used as a fuel additive because of the knock resistance it could provide to gasoline. It reduced the risk of engine knocking and improved the performance of older vehicles.

No, fuel additive containing real lead is no longer used in modern fuels.

No. There is no more leaded fuel in Europe. TetraBOOST E-guard 15 is the only solution for leaded petrol.

No. TetraBOOST E-guard 15 is true tetraethyl lead (TEL) in an aromatic hydrocarbon solution, with associated chemical purifiers and anti-ethanol formulas. TetraBOOST E-guard 15 allows you to make real leaded fuel from the unleaded pump, whenever and wherever you need it. If you are looking for a lead replacement, we recommend TetraBOOST E-guard Road.

TetraBOOST protects your classic car against ethanol corrosion by E5 and E10 petrol, even up to 15% ethanol (E15). When refueling, an amount of E-guard 15 is added to the tank. TetraBOOST E-guard 15 contains tetraethyl lead and therefore makes real leaded fuel, resulting in easier starting and a smoother and cooler running. TetraBOOST E-guard 15 increases performance in races, gasoline up to 106 octane can be made.

Fuel addition with real lead has several disadvantages, including lead toxicity, harmful effects on the environment, and negative health effects from exposure to lead particles.

Tetraethyl lead in its raw form is highly toxic. TetraBOOST E-guard 15 contains tetraethyl lead in solution, in this form it can be used safely if used in accordance with the safety instructions.

Yes. TetraBOOST E-guard 15 is a true lead additive, so it falls outside the European Union legislation regarding leaded fuels.

Certainly. TetraBOOST E-guard 15 is suitable for any high-speed use and is significantly cheaper than the fuel offered on race circuits. It is also more effective than many of the specialist racing fuels available in barrels. Many people race on TetraBOOST E-guard 15 and with success.
TetraBOOST E-guard 15 can be used in any racing class where:

• The choice of fuel is free.
• Only approved additives are allowed.
• BS 4040 leaded fuel is permitted.
• TetraBOOST E-guard 15 is able to increase the octane value to 106 for specialist racing engines. We recommend Esso Synergy Supreme+ for high octane mixtures for racing use.

Dyno testing shows that TetraBOOST E-guard 15 provides improvements in torque and power. These tests demonstrate improved torque values ​​of typically 3-4%. We also see an increase in power, usually between 2 and 3%. Combustion is more controlled and the engine runs cooler.

TetraBOOST E-guard 15 is a solution of tetraethyl lead (TEL) in aromatic hydrocarbons, which together with the necessary chemical “scrubbers” makes real leaded gasoline. Tetraethyl lead provides better protection and performance than lead substitutes based on phosphorus, manganese, sodium and potassium.

TetraBOOST E-Guard 15 is supplied in cans that have been tested for up to 3 years and have shown no deterioration of the can or the product. However, TEL (tetraethyl lead) is sensitive to oxidation in daylight. Therefore, containers should be stored in a cool, dark place. Mixed fuel should only be stored in metal or approved red plastic fuel containers.

TetraBOOST E-guard 15 is used in all kinds of classic cars and motorcycles, from pre-war to all post-war classics. It is widely used by racing teams from souped-up Austin 7s to V16 BRMs. Our product is used by national and international motor museums in cars and motorcycles. Also by recognized brand experts and well-known restorers.

TetraBOOST Fuel Life Extender is a fuel additive to extend the life of modern fuels and minimize engine damage due to fuel oxidation. TetraBOOST Fuel Life Extender is particularly aimed at classic vehicles that stand still for longer periods, for example during winter storage.

TetraBOOST Fuel Life Extender protects your classic car during periods of storage. Modern fuel oxidizes faster than before, causing fuel to spoil more quickly. The result is sludge formation in the fuel system, which causes difficult starting after a period of storage. TetraBOOST Fuel Life Extender delays the onset of fuel oxidation. TetraBOOST Fuel Life Extender extends the storage life of fuel and slowly breaks down existing sludge.

Yes, TetraBOOST Fuel Life Extender was introduced in 2019 and has since been used in many classic cars and motorcycles.

TetraBOOST Bug Kill is a fuel additive for classic cars to prevent bacteria formation in modern fuels. Bacteria buildup appears as white or gray slime and can cause problems such as clogging of fuel filters, corrosion of tanks and pipes, and erratic engine performance.

TetraBOOST Bug Kill prevents clogging of filters, nozzles and meters due to bacteria formation and has an immediate effect. It prevents the build-up of sludge or mucus. TetraBOOST Bug Kill works in both gasoline and diesel systems.

Yes, TetraBOOST Bug Kill was introduced in 2019 and has since been used in many classic cars and motorcycles.

TetraBOOST E-Guard Road is a fuel additive for classic cars and motorcycles. It is a conventional potassium-based lead substitute, octane booster and ethanol corrosion inhibitor. Designed for cars without hardened valve seats, to provide protection against problems caused by modern ethanol-based petrol (E5 and E10).

TetraBOOST E-guard Road protects against ethanol-induced corrosion, inhibits valve seat recession and increases octane content by up to 2 points.

Yes, TetraBOOST E-guard Road was introduced in 2019 and has since been used in many classic cars and motorcycles.

Lees voor gebruik de veiligheidsinstructie
Verwijder nooit het label van het TetraBOOST-blik
Draag beschermende handschoenen/kleding en oogbescherming
Alleen gebruiken in een goed geventileerde ruimte
Doorboor het binnenste zegel, haal het eruit en gooi het weg
Vermijd elke blootstelling met het product
Handel voorzichtig om spatten en morsen te voorkomen
Niet gebruiken in de buurt van hitte, vonken of open vuur
Gemorst product niet opruimen zonder beschermende uitrusting
Verontreinigde kleding onmiddellijk uittrekken.

• Read The safety instructions before use
• Never remove The label from The TetraBOOST can
• Store TetraBOOST Only in The TetraBOOST can
• Store the can upright, tightly closed, cool and dry
• Do not leave TetraBOOST in direct sunlight
• Do not attempt to Store TetraBOOST in any other container

“You can add a measured amount of TetraBOOST to your petrol tank. The amount of TetraBOOST E-guard 15 depends on the desired octane number and the number of liters of petrol being refueled. The amount of TetraBOOST E-guard 15 to be added can be calculated with our calculator TetraBOOST E-guard 15 can be added before or after refueling. Adding it before refueling ensures the best mixing result.

You can also pre-mix the TetraBOOST E-guard 15 and the base fuel in a separate jug or jerry can.”

TetraBOOST Fuel Life Extender comes in a handy 50 ml one-shot bottle. This 50 ml is good for a maximum of 50 liters of petrol. You can add the 50 ml to your fuel tank. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

TetraBOOST E-guard Road comes in a handy 50 ml one-shot bottle. This 50 ml is good for a maximum of 50 liters of petrol. You can add the 50 ml to your fuel tank. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

To make 97 octane leaded fuel, mix E-guard 15 with regular E5 (Euro95) unleaded fuel. To make 101 octane fuel it is more economical to start with super unleaded fuel (Euro98) as a base. For higher octane values ​​we recommend Esso Synergy Supreme+.

Dosing does not have to be very precise, as each overdose will only marginally increase the octane number and an underdosage will reduce the octane number to a limited extent. Never dose below an octane number increase of 2 points (110:1) for good protection of the valves, stems and guides.

Yes. Unlike substitutes where too much can cause damage to your engine, TetraBOOST allows you to make stronger leaded fuel without damage to the engine. TetraBOOST E-guard 15 is able to increase the octane value to 106 for specialist racing engines.

For regular use, touring and storage, we recommend using 101 Octane. In our calculator you can calculate how much TetraBOOST E-guard 15 you can add to the number of liters that are refueled.

With 6 cans of 945ml you can make approximately 652 liters of 101 Octane fuel.

We recommend using Euro98 (E5) as basic fuel. However, it is possible to mix E-guard 15 with Euro95 (E10). The advice is to maintain a maximum octane number increase of 2 points, this is a mix ratio of 8.7 ml TetraBOOST E-guard 15 per liter Euro95 petrol (110:1).

Yes, of course, if you can find it! TetraBOOST E-guard 15 is exactly the same as the lead that was previously used in pump fuel.

TetraBOOST E-guard 15 is suitable for petrol cars and engines without a catalyst.

TetraBOOST E-guard 15 cannot be mixed with any other additive. First empty the tank as much as possible if other additives have been used.

TetraBOOST E-guard 15 is not suitable for diesel engines. For diesel vehicles we recommend TetraBOOST Bug Kill.

No. All cars equipped with a catalytic converter are designed to run on unleaded fuel only.

For competition cars with foam-filled tanks or collapsible pocket tanks, pre-mix TetraBOOST E-guard 15 with the base fuel in a separate container and stir to ensure a uniform mixture.

Although it is possible to obtain an increase of up to 8 octane points by increasing the dosage of TetraBOOST E-guard 15 as shown in our calculator, an increase above 3 points may exceed the legal limit for tetraethyl lead for road fuel . Higher octane numbers can be achieved for competition use. Our advice is to maintain a maximum octane number of 106 in competition.

If you do not use your classic car for more than 2 months, we recommend adding a bottle (50 ml) of TetraBOOST Fuel Life Extender to the fuel tank. For example, when you prepare your classic car for winter storage.

TetraBOOST Fuel Life Extender comes in a handy 50 ml one-shot bottle. This 50 ml is good for a maximum of 50 liters of petrol. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

No. Dosing does not have to be very precise. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

We recommend using Euro98 (E5) as basic fuel. However, it is possible to mix TetraBOOST Fuel Life Extender with Euro95 (E10).

TetraBOOST Fuel Life Extender is suitable for petrol cars and engines without a catalyst.

We recommend mixing TetraBOOST Fuel Life Extender only with TetraBOOST Bug Kill and/or TetraBOOST E-guard Road and not with other additives.

TetraBOOST Fuel Life Extender is not suitable for diesel engines.

No, we do not recommend using TetraBOOST Fuel Life Extender on a car or motorcycle with a catalytic converter.

When you fill up Euro95 (E10) or Euro98 (E5) in your classic car or motorcycle, we recommend using TetraBOOST E-guard 15. This offers the most comprehensive protection against engine damage caused by modern fuel. If you choose not to use TetraBOOST E-guard 15, the use of TetraBOOST Bug Kill is recommended. TetraBOOST E-guard 15 is not suitable for diesel vehicles, TetraBOOST Bug Kill is suitable for diesel vehicles.

TetraBOOST Bug Kill comes in a handy 50 ml one-shot bottle. This 50 ml is good for a maximum of 50 liters of fuel. If your tank is filled with more than 50 liters of petrol or diesel, we recommend using 2 bottles.

Dosing does not have to be very precise. If your tank is filled with more than 50 liters of petrol or diesel, we recommend using 2 bottles.

TetraBOOST Bug Kill can be mixed with diesel, Euro95 (E10), Euro98 (E5) and Euro99. For classic vehicles with a petrol engine, we recommend using Euro98 (E5) as the base fuel.

TetraBOOST Bug Kill is suitable for petrol and diesel vehicles without a catalytic converter.

We recommend mixing TetraBOOST Bug Kill only with TetraBOOST Bug Kill and/or TetraBOOST E-guard Road and not with other additives.

Yes, TetraBOOST Bug Kill is suitable for diesel engines.

No, we do not recommend using TetraBOOST Bug Kill on a car or motorcycle with a catalytic converter.

TetraBOOST E-guard Road comes in a handy 50 ml one-shot bottle. This 50 ml is good for a maximum of 50 liters of petrol. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

No. Dosing does not have to be very precise. If your tank is filled with more than 50 liters of gasoline, we recommend using 2 bottles.

We recommend using Euro98 (E5) as the base fuel for classic cars. However, it is possible to mix TetraBOOST E-guard Road with Euro95 (E10).

TetraBOOST E-guard Road is suitable for petrol cars and engines without a catalytic converter..

We recommend mixing TetraBOOST E-guard Road only with TetraBOOST Bug Kill and/or TetraBOOST Fuel Life Extender and not with other additives.

TetraBOOST E-guard Road is not suitable for diesel engines.

No, we do not recommend using TetraBOOST E-guard Road on a car or motorcycle with a catalytic converter.

In many European countries, station owners are obliged to carry E10 petrol. E10 is a fossil fuel to which a maximum of 10% bio-ethanol has been added. Bioethanol is an alcohol made from, for example, wheat, sugar and corn. Good for the environment, but less good for your classic car or motorcycle. TetraBOOST E-guard 15 neutralizes ethanol in E5 and E10 gasoline.

Yes, ethanol attracts water and can therefore be harmful to classic cars, especially those with older fuel system components such as carburetors, seals and hoses.

The problem with ethanol in classic cars is that ethanol can be corrosive and can damage rubber seals, gaskets and fuel lines. This can lead to fuel leakage, blockages and other damage to the fuel system.

Symptoms of ethanol damage in classic cars can include fuel leaks, difficult starting, poor idling, erratic fuel delivery and general performance problems.

There is no specific ethanol content that can be considered completely safe for all classic cars. It depends on the specific car and the condition of the fuel system. However, some classic car owners prefer to avoid ethanol completely to minimize the risk of damage.

Gas station owners in Europe indicate on the pump or on the fuel bill whether the fuel contains ethanol with an E-coding. E5 stands for 5% ethanol and 95% gasoline, E10 stands for 10% ethanol and 90% gasoline. In addition, ethanol test kits are also available to help you check the ethanol content in your fuel.

It is not practical to completely remove ethanol from gasoline without special equipment. It is generally recommended to use a fuel additive that neutralizes ethanol.

TetraBOOST E-guard 15 neutralizes ethanol to E15 fuel (15% ethanol and 85% gasoline).

No. TetraBOOST is only available from distributors.

Place your products in your digital shopping cart via the large red button.

We always have a large stock of all TetraBOOST products and can therefore deliver quickly.

Yes, you can order individual cans (945ml), which are ideal for motorcycles and occasionally used cars.

TetraBOOST.eu can ship throughout Europe. For the United Kingdom we recommend ordering from our partner Motor Spirit (link https://motorspirit.co.uk/).

You can only change your order if you have not yet received a shipping confirmation. Please contact our customer service to change the name or address of your order.

Your order will in principle be shipped the next working day. The delivery time depends on the destination in Europe. In general, the goods are delivered within 3 working days.

If you have not yet received a shipping confirmation, you can change the order via our customer service to change your address. If your order is too far along in the delivery process, this is unfortunately no longer possible, not even via customer service. There will then be a message on your track & trace page. You can ask the residents of the incorrect address if you can pick up the package there, or ask them to refuse the package. Your order will then be returned to TetraBOOST.eu and you will receive your money back.

Step 1: View the track & trace code of your order. You received this from UPS. Check via this link whether the delivery time indication has shifted.
Step 2: Check the delivery address. Is the delivery address you entered correct? Also check your zip code.
Step 3. Check your email or your PO box. Have you received a ‘not at home’ message? The package has then been delivered to the neighbors or the delivery person has scheduled a new delivery time.
Step 4. Have you not yet received your TetraBOOST 7 days after receiving your proof of shipment? Please contact our customer service.

By appointment you can pick up TetraBOOST at Bedrijfsweg 72, 8304 AA Emmeloord. Please contact us to make a collection appointment.

TetraBOOST.eu chooses standard shipping where CO2 emissions are compensated. You don’t have to do anything for this yourself.

With your shipping confirmation you will receive a link to your track & trace code. You can track your order with this link.

We strive for the ideal customer experience, but things sometimes go wrong with us too. Do you have a complaint or a suggestion for improvement? We would like to hear from you. You can easily send a message to our customer service. You will then receive a response from us within 5 days.

Cancellation is only possible if your order has not yet left our warehouse. Has your order already been shipped? Then you can refuse him at the door. Your order will then be returned to TetraBOOST.eu and you will receive your money back.

You can return it free of charge within 14 days of receipt, provided the packaging is unopened. Please contact our customer service for this.

If you would like to return your TetraBOOST, please contact our customer service.

You can return it free of charge within 14 days of receipt, provided the packaging is unopened. Please contact our customer service for this.

At TetraBOOST.eu you pay online or in our company. In our company you pay with cash, you cannot pay by card. You always pay for online orders in advance with:

• iDEAL
• creditcard (Visa of Mastercard)
• Bancontact
• Paypal
• a banktransfer

When collecting from our company (Bebedrijfsweg 72 in Emmeloord) you can pay in cash, you cannot pay by card. Collection is always made by appointment, please contact our customer service.What is the account number of TetraBOOST.eu?
TetraBOOST.eu is a trade name of Classicpartsshop. The IBAN is NL37 ABNA 0138 8317 26. The SWIFT/BIC code is ABNANL2A.

Sometimes the email ends up in your spam box. Can’t find him there? Then the email is delayed or your payment was not successful. Please check whether money has been debited from your account or whether there is a reserved amount on your credit card.

• · Has money been debited? Due to busy times, the confirmation may sometimes be sent later. Have you not received confirmation after 1 working day? Please contact our customer service.
• · Has no money been debited? Then your order has failed and you can place another order. You do not have to worry that you will ultimately receive 2 orders, we will not ship orders without successful payments.