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Castrol Classic Etha-Guard Plus Fuel Additive
Fuel Additives

Castrol Classic Etha-Guard Plus Fuel Additive

Part Number: 094.172
£17.11 inc. VAT In stock
This product is not eligible for free UK delivery.

Stabilises E5 & E10 ethanol petrol. Fully compatible with catalytic converters, Etha-Guard Plus offers the best protection against ethanol damage for drivers of younger and modern classics.

Etha-Guard is an additive that counteracts ethanol’s hygroscopic nature, preventing moisture and subsequent acidity in your fuel system. Etha-Guard protects both in use and in storage, stabilising the fuel to prevent moisture absorption and separation.

All products in the Valvemaster Fuel Additive range contain Etha-Guard. Classic Etha-Guard Plus is compatible with catalytic converters, so can be used by owners of younger and modern classics who do not require valve seat protection.

250ml bottle - 1 bottle treats 250 litres of petrol

*2 in 1 formula

*Etha-Guard ethanol stabiliser: Enables use of E5 & E10 petrol with or without a catalytic convertor. Prevents corrosion in fuel systems. Prevents acidity in ethanol fuel. Keeps fuel system clean. Protects your vehicle in use or storage; also prevents damage to fibreglass fuel tanks.

*Octimise Plus friction modifier: Enhanced performance and economy. Increases acceleration by up to 3% and increases economy by up to 2%.

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Please call +44 (0) 1885 488 488 between 8.30 and 5.00 (UK time) Monday to Friday to speak to one our sales team.

Holden Vintage & Classic, Building11, Stanmore Business Park, Bridgnorth, Shropshire, WV15 5HR, United Kingdom

Open 8.30am and 5.00pm Monday to Friday. We are closed Bank Holidays.


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More information about our delivery methods can be found here

At Holden Vintage & Classic, we want you to be delighted with your purchase.

For this reason, if a product is faulty or defective, you may return it to us with a covering letter explaining the problem within 12 months of the date of purchase. We will send you a returns label to send the item back at our cost, and upon receipt of the returned goods, we will repair the product for you or send you a replacement.

If you've had a change of heart, you may return most new unused or unopened items, within 14 days of receipt for a full refund. The items must be in an as-new, resaleable condition. 
A copy of the sales invoice must accompany all returned goods. 

If you're unsure of anything, give us a call Monday to Friday 8.30am to 5pm, on +44 (0) 1885 488 488. 

Read more about returns here.