Do you just put this in with the oil? Do you still need to keep the oil level at the same level? Or do you just add this in top of the current oil?

Hi, You should take care not to overfill the oil. Add this if the engine has enough room before the Maximum, if you wish to add it now. But if you can, wait till an oil change for the best results. Thanks

Can you use it in Diesel engines

Taken from description - Wynn's Formula Gold High Performance Engine Treatment is suitable for use with both petrol or diesel engines.

Will this break down emulsion sludge already built up?

Hi, for that you really want a flush, like the Millers Engine Flush.

Is this suitable for motorcycles please

I wouldn't if you have a wet clutch, its possible it could make clutch slip.

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WYNNS Formula Gold Engine Oil Treatment - Improves Compression - 500ml | Reduces Wear - Enhances Oil Viscosity & Cleans Engine Internally

Product ID: 49425112

🔥Enhanced combustion efficiency

⚙️Double-action compression boost

❄️Cold start lubrication stability

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Description

⚡ Unlock your engine’s hidden power with Wynn’s Gold standard!

UNIVERSAL COMPATIBILITY - Works seamlessly with petrol, diesel, LPG, and hybrid engines for versatile care.
ECO FRIENDLY PERFORMANCE - Reduces oil consumption and harmful emissions, aligning with modern green standards.
ENGINE CLEANLINESS CHAMPION - Prevents sludge buildup, ensuring smooth oil circulation and longer engine life.
POWERFUL DOUBLE ACTION FORMULA - Boosts engine compression and slashes mechanical wear for peak performance.
ALL WEATHER VISCOSITY STABILITY - Maintains optimal oil flow from freezing cold starts to scorching heat.

WYNNS Formula Gold Engine Oil Treatment is a 500ml advanced additive designed to improve engine compression, reduce wear, and maintain oil viscosity across temperature extremes. It prevents sludge buildup, supports cleaner combustion, and is compatible with a wide range of engine types including petrol, diesel, LPG, and hybrid. Trusted by professionals and everyday drivers alike, it enhances engine longevity and performance while aligning with environmental standards.

Specifications

ASIN	B0074FWTSK
Best Sellers Rank	13,336 in Automotive ( See Top 100 in Automotive ) 30 in Engine Oil Additives
Brand	Wynn's
Customer Reviews	4.7 4.7 out of 5 stars (287)
Date First Available	21 Aug. 2010
Guaranteed software updates until	unknown
Item Weight	500 g
Item model number	77101
Manufacturer	Wynn Oil UK
Manufacturer part number	77101
Model	Formula Gold Engine Treatment
Product Dimensions	9.2 x 4.6 x 23.7 cm; 500 g

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€ 41.62

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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