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Oil System Additives & Flushes

Historically, we haven't recommended engine oil flushes or system additives during servicing, but these days, solvent-free, detergent-based engine flush and additives are available which does a much better job without the disadvantages of solvent-based engine flush.

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42 Products

Millers Oils Engine Flush Fully Synthetic Engine Oil Treatment

Millers Oils Engine Flush Fully Synthetic Engine Oil Treatment

250ml

RRP £6.95
£5.95
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Liqui Moly Pro-Line Engine Flush

Liqui Moly Pro-Line Engine Flush

Opie Price
£9.95
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Liqui Moly Hydraulic Lifter Additive

Liqui Moly Hydraulic Lifter Additive

300ml - SKU 2770

Opie Price
£5.95
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Liqui Moly Engine Flush Plus

Liqui Moly Engine Flush Plus

300ml - SKU 8374

Opie Price
£6.95
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Liqui Moly Motor Oil Saver

Liqui Moly Motor Oil Saver

300ml - SKU 1802

Opie Price
£8.95
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Millers Oils EPP Engine Flush Fully Synthetic Engine Oil Treatment

Millers Oils EPP Engine Flush Fully Synthetic Engine Oil Treatment

400ml

Opie Price
£12.95
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ISOPON Leak Stop For Petrol Tanks Radiators & Sumps - 250 ml (LKSTOP/S)

ISOPON Leak Stop For Petrol Tanks Radiators & Sumps - 250 ml (LKSTOP/S)

250 ml

Opie Price
£11.95
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Castrol Engine Shampoo (Pre-Oil Change Treatment)

Castrol Engine Shampoo (Pre-Oil Change Treatment)

300ml

Opie Price
£13.99
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Millers Oils Stop Leak Engine and Gear Oil Treatment

Millers Oils Stop Leak Engine and Gear Oil Treatment

250ml

RRP £5.95
£4.99
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KALIMEX JLM BorTec Friction Reduction Engine Oil Additive - 250ml (J06050)

KALIMEX JLM BorTec Friction Reduction Engine Oil Additive - 250ml (J06050)

250ml

Opie Price
£18.50
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Liqui Moly Oil Additive

Liqui Moly Oil Additive

300ml - SKU 2591

Opie Price
£5.95
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Wynns Engine Flush for Petrol & Diesel Engines - Detergent Based (51265)

Wynns Engine Flush for Petrol & Diesel Engines - Detergent Based (51265)

425ml

Opie Price
£8.50
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Amsoil Break-In Oil SAE 30

Amsoil Break-In Oil SAE 30

1 US Quart

Opie Price
£12.95
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Comma Engine Flush Oil Additive for Petrol & Diesel Engines

Comma Engine Flush Oil Additive for Petrol & Diesel Engines

400ml

Opie Price
£4.99
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Valvoline Engine Oil System Cleaner

Valvoline Engine Oil System Cleaner

300ml

Opie Price
£10.99
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Price Beater
Wynns Hydraulic Valve Lifter Concentrate (76844)

Wynns Hydraulic Valve Lifter Concentrate (76844)

325ml

Opie Price
£13.50
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Lucas Oil Engine Oil Stop Leak

Lucas Oil Engine Oil Stop Leak

Opie Price
£35.50
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Price Beater
Lucas Oil Heavy Duty Oil Stabiliser

Lucas Oil Heavy Duty Oil Stabiliser

Opie Price
£10.50
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KALIMEX JLM Engine Oil Flush - 250ml (J04835)

KALIMEX JLM Engine Oil Flush - 250ml (J04835)

250ml

Opie Price
£13.50
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KALIMEX JLM Oil Stop Smoke Treatment - 250ml (J04831)

KALIMEX JLM Oil Stop Smoke Treatment - 250ml (J04831)

250ml

Opie Price
£12.50
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Wynns CV Super Charge Oil Treatment (W51390)

Wynns CV Super Charge Oil Treatment (W51390)

1 Litre

Opie Price
£31.50
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Wynns Commercial Vehicle Additives Starter Set - 12 x 1 Litres - 8 Varieties
Free Shipping

Wynns Commercial Vehicle Additives Starter Set - 12 x 1 Litres - 8 Varieties

Starter Set with Stand

Opie Price
£390.50
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EXOPRO ENGINE FLUSHING OIL (U350)

EXOPRO ENGINE FLUSHING OIL (U350)

5 Litres

Opie Price
£31.99
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Liqui Moly Oil Smoke Stop

Liqui Moly Oil Smoke Stop

300ml - SKU 8901

Opie Price
£6.95
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Liqui Moly Power Steering Oil Leak Stop

Liqui Moly Power Steering Oil Leak Stop

35ml - SKU 1099

Opie Price
£5.95
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Liqui Moly Engine Flush

Liqui Moly Engine Flush

300ml

Opie Price
£7.99
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Liqui Moly Pro-Line Oil Loss Stop Oil Additive to Rejuvenate Seals

Liqui Moly Pro-Line Oil Loss Stop Oil Additive to Rejuvenate Seals

1 Litre - SKU 5182

Opie Price
£24.95
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Valvoline Engine Oil Stop Leak ML V1

Valvoline Engine Oil Stop Leak ML V1

300ml

Opie Price
£16.99
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Price Beater
Valvoline Engine Oil Treatment ML V1

Valvoline Engine Oil Treatment ML V1

300ml

Opie Price
£17.95
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Wynns HPLS Transmission Treatment (59408)

Wynns HPLS Transmission Treatment (59408)

125ml

Opie Price
£11.95
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Price Beater
Wynns Stop Smoke for Oil Petrol & Diesel (50865)

Wynns Stop Smoke for Oil Petrol & Diesel (50865)

325ml

Opie Price
£7.50
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Wynns Super Charge Oil Treatment for Petrol & Diesel Engines

Wynns Super Charge Oil Treatment for Petrol & Diesel Engines

Opie Price
£7.99
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Price Beater
STP Oil Treatment for Petrol Engines - 450ml (60450EN06)

STP Oil Treatment for Petrol Engines - 450ml (60450EN06)

450ml

Opie Price
£6.95
Add To Basket
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STP Smoke Treatment for Petrol Engines - 450ml (64450EN06)

STP Smoke Treatment for Petrol Engines - 450ml (64450EN06)

450ml

Opie Price
£6.95
Add To Basket
Price Beater
Comma X-Flow Flush Out Mineral Engine Oil Flush

Comma X-Flow Flush Out Mineral Engine Oil Flush

5 Litres

Opie Price
£27.95
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Price Beater
Wynns Engine Oil Stop Leak (77441)

Wynns Engine Oil Stop Leak (77441)

325ml

Opie Price
£13.50
Add To Basket
Price Beater
Wynns Petrol Total Action Treatment (33692A)

Wynns Petrol Total Action Treatment (33692A)

500ml

Opie Price
£21.95
Add To Basket
Price Beater
Wynns Total Action Diesel Cleaner (35964A)

Wynns Total Action Diesel Cleaner (35964A)

325ml

Opie Price
£12.95
Add To Basket
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Wynns Total Action Petrol Cleaner (36064C)

Wynns Total Action Petrol Cleaner (36064C)

325ml

Opie Price
£13.50
Add To Basket
Price Beater
STP Petrol & Diesel Engine Flush - 450ml (62450EN06)

STP Petrol & Diesel Engine Flush - 450ml (62450EN06)

450ml

Opie Price
£5.50

Currently Unavailable

Price Beater
Wynns Hydraulic Valve Lifter Treatment (76858)

Wynns Hydraulic Valve Lifter Treatment (76858)

325ml

Opie Price
£11.95

Currently Unavailable

Price Beater
Wynns Oil System Cleaner (47244)

Wynns Oil System Cleaner (47244)

325ml

Opie Price
£10.99

Currently Unavailable

Price Beater
Historically we haven't recommended engine oil flushes or system additives during servicing, but these days solvent-free, detergent-based engine flush and additives is available which does a much better job without the disadvantages of solvent-based engine flush.
Free UK delivery £80+ (geographic restrictions apply)
60 Day Returns
Free Expert Advice
No Leak Guarantee
01209 202944