Top 10 Diesel Engine Flush UK – Engine Oil Additives

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1. Liqui Moly

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Liqui Moly 3721 Cera Tec Friction Modifier 300 ml 2 Pack

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Liqui Moly #ad - Mixable with all commercially available motor oils. No deposits and absolutely compatible with all commonly used filter systems. Resists extremely high and low temperatures. Stable even under high thermal and dynamic permanent loads.
BrandLiqui Moly #ad
ManufacturerLiqui Moly #ad
Height0 cm (0 Inches)
Length17.8 cm (7.01 Inches)
Weight0.68 kg (1.5 Pounds)
Width0 cm (0 Inches)
Part Number3721
Model3721

2. Forte

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Forte Advanced Formula Motor Flush 400ml

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Forte #ad - Keeps new oil cleaner for longer. Frees sticking variable Valve Timing systems, Hydraulic Valve Lifters and Piston Rings. Stabilises cylinder compression restoring lost engine power. Removes lacquer, varnish, sludge and insoluble deposits from the crankcase. Cleans engines internally and provides anti-wear protection. Neutralises crankcase Acids. Cleans oilways ensuring oil flow to critical moving parts.
BrandForte #ad
ManufacturerFORTE #ad
Height9.06
Length3.15
Width3.15
Part Number40117

3. Liqui Moly

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Less Friction & Lower Fuel Consumption I Ceramic Additive for Engine Oil I 300 ml, LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance

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Liqui Moly #ad - Shake well before use and add to fresh oil. Our products are currently distributed to over 150 countries worldwide. Can be used with manual & automatic transmissions. Turbo & Cat tested. Certified effectiveness proven by tÜv thüringen: chemical components in cera tec smooth out rough surfaces, the ceramic particles fill in uneven surface imperfections.

Prevents direct contact of all metal parts, reducing friction and wear & tear. Long-lasting performance, up to 50, 000 km. Lower fuel consumption and diminished emission of pollutants due to smoother engine operation. Easy to add during oil changes: the 300 ml bottle is sufficient for up to 5 liters of engine oil. Additive ensures smoother-running engine, extending the engine’s lifespan. Everything that drives works better with liqui moly: we manufacture over 4, additives, 000 products: engine oils, vehicle care, chemical servicing and repair, adhesives and sealing products.

Smoother engine performance from very first use: an engine additive formulated with high-tech ceramic compounds, high thermal resilience. They are popular everywhere, ensuring a superior driving experience and improved engine performance. Not suitable for use with wet clutches. Can be mixed with all gear & engine oils on the market.
BrandLiqui Moly #ad
ManufacturerLIQUI MOLY #ad
Height7.62 cm (3 Inches)
Length6.35 cm (2.5 Inches)
Weight0.3 kg (0.66 Pounds)
Width2.54 cm (1 Inches)
Part NumberP000017
Model3721

4. Liqui Moly

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LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil Additive | SKU: 2427

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Liqui Moly #ad - Cleans the engine from the inside. One 500 ml can is sufficient for up to 5 litres of oil. Removes deposits from lubrication holes, oil screens, piston ring zone etc. Improves compression. Cleaning and flushing out the oil systems of petrol and diesel engines. Reduces engine noise and oil consumption.
BrandLiqui Moly #ad
ManufacturerLiqui Moly GmbH #ad
Height8.07
Length2.6
Weight0.41 kg (0.91 Pounds)
Width2.6
Part NumberP000065
Model02427

5. Liqui Moly

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LIQUI MOLY 5200 Oil Sludge Flush 300 ml

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Liqui Moly #ad - Increases the operational reliability of the engine and prevents lubrication deficiency. Removes black sludge and other contaminants and deposits.

Washes the black build-up and other dirts and deposits. Gently cleans oil holes, oil screens, piston ring grooves and ducts and prevents engine damage. Not for motorcycles with wet clutches. The perfect solution for cleaning the engine from the inside. For all commercially available motor oils in petrol and diesel engines with and without diesel particle filters Turbo and catalytic converter tested. The fine solution for cleaning the engine from the inside.
BrandLiqui Moly #ad
ManufacturerLiqui Moly GmbH #ad
Height18.5 cm (7.28 Inches)
Length5.4 cm (2.13 Inches)
Weight0.26 kg (0.57 Pounds)
Width5.4 cm (2.13 Inches)
Part Number5200
Model5200

6. Wynn's

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Wynn's Engine Oil Flush Cleans Inside Engine & Removes Harmful Deposits 425ml

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Wynn's #ad - Is compatible with all mineral, synthetic, single and multigrade oils and suitable for regular and low SAPS applications. Quietens noisy hydraulic valve lifters by removing deposits & neutralises acids. Cleans engines, hydraulic systems, gearboxes and differentials internally. Frees sticking internal engine components by dissolving deposits, preventing contamination of fresh oil by residues left behind. Quickly and efficiently dissolves varnish, sludge and other contaminants from vital engine parts.
BrandWynn's #ad
ManufacturerWynn Oil UK #ad
Height6.18
Length2.24
Weight0.26 kg (0.58 Pounds)
Width2.24
Part NumberWYN51265
ModelWY51265
Warranty12 months

7. Liqui Moly

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2x Liqui Moly 2427 Pro-Line Engine Flush 500ml

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Liqui Moly #ad - If you are not sure whether the item is suitable for your vehicle, please contact us by email. Liqui moly pro-Line Engine Oil Additive.
BrandLiqui Moly #ad
ManufacturerLIQUI MOLY #ad
Part NumberSET000520222

8. Liqui Moly

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LIQUI MOLY Gear-Oil Additive | 20 g | Oil Additive | SKU: 1040

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Liqui Moly #ad - For gearbox, driveshaft and differentials - especially under high thermal loading Contents are enough for up to 1 litre of gearbox oil Not for motorcycles with a wet clutch.

Contains highly concentrated MoS2 to reduce wear in manual and differential transmissions, axle drives without integrated wet differential locks and mechanical steering systems. Mos2 reduces temperature peaks and ensures quieter running and smoother shifting. The mos2 additive builds a durable film of lubrication on a rubbing and sliding surfaces Prevents rubbing and wear and disperses temperature peaks. The transmission heats up less and benefits from smoother tooth faces in terms of quieter running and improved performance.
BrandLiqui Moly #ad
ManufacturerLiqui Moly GmbH #ad
Height5.94
Length0.71
Weight0.04
Width1.14
Part Number1040
Model1040

9. STP

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STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml

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STP #ad - Proudly made in the UK. Neutralises harmful acids. Removes harmful sludge and deposits. Stops/prevents minor oil leaks. Protects the engine during and after flushing.
BrandSTP #ad
ManufacturerArmor All #ad
Height19.99 cm (7.87 Inches)
Length10.01 cm (3.94 Inches)
Weight0.94
Width11 cm (4.33 Inches)
Part NumberGST62450EN06
ModelGST62450EN06
WarrantyNO WARRANTY

10. Liqui Moly

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LIQUI MOLY Oil Additive | 200 ml | Oil Additive | SKU: 7178

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Liqui Moly #ad - Model number: 7178. The mos2 low-viscosity engine oil creates a heavy-duty lubricant film on all frictioning and sliding metal surfaces; It reduces friction, gooding the aggregates run more smoothly. Add 5 % 50 ml per litre of oil of oil additive to motor oil; in motorcycles with wet clutch, add 2 % 20 ml per litre of oil; Can be added to motor oil at any time. Added to the lubricating oils of engines, compressors, pumps and especially motor vehicle engines gasoline and diesel; Mixable with all commercially available motor oils.
BrandLiqui Moly #ad
ManufacturerLIQUI MOLY GmbH #ad
Height6.69
Length2.36
Width2.36
Part Number7178
Model7178