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Car oil additives

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198 items for engine oil additive
MANNOL motor oil additive 4036021994321 MN9943045 MANNOL Motor Doctor + Ester oil additives
MN9943-045 MANNOL Motor Doctor + Ester Engine Oil Additive 0.45l, Bottle
Article number: MN9943-045
Reviews - 5
  • Capacity [litre]: 0.45
  • Packing Type: Bottle
  • Product line: Motor Doctor + Ester
  • Compatibility: Universal fit
  • Mixing Ratio: 1:10
  • Item number: MN9943-045
  • Our price: £4.29
  • Manufacturer: MANNOL
  • EAN number: 4036021994321
  • Condition: New
Details
In stock
£4.29
£9.53 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

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MANNOL engine oil additives 4036021782928 MN9829025 MANNOL Ceramo Ester engine oil additive
MN9829-025 MANNOL Ceramo Ester Engine Oil Additive 0.25l, Bottle
Article number: MN9829-025
Reviews - 12
  • Capacity [litre]: 0.25
  • Packing Type: Bottle
  • Product line: Ceramo Ester
  • Compatibility: Universal fit
  • Mixing Ratio: 1:50
  • Item number: MN9829-025
  • Our price: £4.99
  • Manufacturer: MANNOL
  • EAN number: 4036021782928
  • Condition: New
Details
In stock
£4.99
£19.96 for 1 litre

price incl. 20% VAT

excl. delivery costs

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T351 K2 Engine Oil Additive 355ml
Article number: T351
Reviews - 63
  • Capacity [ml]: 355
  • Vehicle type: Car
  • Type: stop smoke
  • Item number: T351
  • Our price: £5.29
  • Manufacturer: K2
  • EAN number: 5906534007889
Details
In stock
£5.29
£14.90 for 1 litre

price incl. 20% VAT

excl. delivery costs

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19-067 MOJE AUTO Engine Oil Additive Tin, 444ml
Article number: 19-067
Reviews - 67
  • Capacity [ml]: 444
  • Vehicle type: Car
  • Type: stop smoke
  • Packing Type: Tin
  • Observe service information
  • Item number: 19-067
  • Our price: £5.99
  • Manufacturer: MOJE AUTO
  • EAN number: 5905694006237
Details
In stock
£5.99
£13.49 for 1 litre

price incl. 20% VAT

excl. delivery costs

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  • Capacity [ml]: 500
  • Packing Type: Can
  • suited for engine type: Diesel, Petrol Injection
  • Product line: Engine oil additive
  • Item number: 20-B42
  • Our price: £6.29
  • Manufacturer: MA PROFESSIONAL
  • EAN number: 5905694023388
  • Condition: New
Details
In stock
£6.29
£12.58 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

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T350 K2 Engine Oil Additive 443ml
Article number: T350
Reviews - 42
  • Capacity [ml]: 443
  • Vehicle type: Car
  • Type: Viscosity stabiliser
  • Item number: T350
  • Our price: £6.99
  • Manufacturer: K2
  • EAN number: 000000350006
Details
In stock
£6.99
£15.78 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

MANNOL oil additives 4036021894119 MN9990030ME MANNOL Motor Doctor motor oil additive
MN9990-030ME MANNOL Motor Doctor Engine Oil Additive Metal container, 300ml
Article number: MN9990-030ME
Reviews - 21
  • Capacity [ml]: 300
  • Type: Viscosity stabiliser
  • Colour: brown
  • Packing Type: Metal container
  • Product line: Motor Doctor
  • Compatibility: Universal fit
  • Mixing Ratio: 1:16
  • Item number: MN9990-030ME
  • Our price: £7.29
  • Manufacturer: MANNOL
  • EAN number: 4036021894119
  • Condition: New
Details
In stock
£7.29
£24.30 for 1 litre

price incl. 20% VAT

excl. delivery costs

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36109 KROON OIL Engine Oil Additive 0,25l, Tin
Article number: 36109
Reviews - 11
  • Capacity [litre]: 0,25
  • Vehicle type: Car
  • Type: engine flush
  • Packing Type: Tin
  • Chemical Properties: Thin
  • Item number: 36109
  • Our price: £10.99
  • Manufacturer: KROON OIL
  • EAN number: 8710128361090
  • Condition: New
Details
In stock
£10.99
£43.96 for 1 litre

price incl. 20% VAT

excl. delivery costs

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Danger!
  • Capacity [ml]: 125
  • Vehicle type: Car
  • Type: Viscosity stabiliser
  • Packing Type: Metal container
  • Item number: 1011
  • Our price: £10.99
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420010118
  • Condition: New
Details
In stock
£10.99
£87.92 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

30-062 STP Engine Oil Additive Petrol, Diesel, 444ml
Article number: 30-062
Reviews - 19
  • Capacity [ml]: 444
  • Vehicle type: Car
  • Type: stop smoke
  • Fuel Type: Petrol, Diesel
  • Item number: 30-062
  • Our price: £10.99
  • Manufacturer: STP
  • EAN number: 5020144219422
Details
In stock
£10.99
£24.75 for 1 litre

price incl. 20% VAT

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  • Capacity [litre]: 1
  • Packing Type: Bottle
  • Product line: Ester Additive
  • Compatibility: Universal fit
  • Chemical Properties: high corrosion protection
  • Mixing Ratio: 1:10
  • Item number: MN9929-1PET
  • Our price: £12.49
  • Manufacturer: MANNOL
  • EAN number: 4036021992938
  • Condition: New
Details
In stock
£12.49
£12.49 for 1 litre

price incl. 20% VAT

excl. delivery costs

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1009 LIQUI MOLY Engine Oil Additive Bottle, 300ml
Article number: 1009
Reviews - 23
  • Capacity [ml]: 300
  • Vehicle type: Car
  • Type: Hydraulic lifter additive
  • Packing Type: Bottle
  • Item number: 1009
  • Our price: £12.49
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420010095
  • Condition: New
Details
In stock
£12.49
£41.63 for 1 litre

price incl. 20% VAT

excl. delivery costs

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1012 LIQUI MOLY Engine Oil Additive Tin, 200ml
Article number: 1012
Reviews - 31
  • Capacity [ml]: 200
  • Vehicle type: Car
  • Type: treatment
  • Packing Type: Tin
  • Item number: 1012
  • Our price: £12.99
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420010125
  • Condition: New
Details
In stock
-14%
compared to RRP £15.23

£12.99
£64.95 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

2180 LIQUI MOLY Engine Oil Additive Tin, 300ml
Article number: 2180
Reviews - 10
  • Capacity [ml]: 300
  • Vehicle type: Car
  • Type: treatment
  • Packing Type: Tin
  • Item number: 2180
  • Our price: £12.99
  • Manufacturer: LIQUI MOLY
  • EAN number: 2222213480944
  • Condition: New
Details
In stock
£12.99
£43.30 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

Danger!
  • Capacity [ml]: 300
  • Vehicle type: Car
  • Packing Type: Bottle
  • Item number: 20-B28
  • Our price: £13.99
  • Manufacturer: MA PROFESSIONAL
  • EAN number: 20-B28
  • Condition: New
Details
In stock
£13.99
£46.63 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

  • Capacity [ml]: 300
  • Vehicle type: Car
  • Type: stop smoke
  • Packing Type: Metal container
  • Item number: 2122
  • Our price: £13.99
  • Manufacturer: LIQUI MOLY
  • EAN number: 2222213480941
  • Condition: New
Details
In stock
-11%
compared to RRP £15.86

£13.99
£46.63 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

Please note!
  • Capacity [ml]: 300
  • Vehicle type: Car
  • Type: Viscosity stabiliser
  • Packing Type: Metal container
  • Item number: 1017
  • Our price: £14.49
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420010170
  • Condition: New
Details
In stock
£14.49
£48.30 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

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8345 LIQUI MOLY Engine Oil Additive Bottle, 300ml
Article number: 8345
Reviews - 20
  • Capacity [ml]: 300
  • Vehicle type: Car
  • Type: Hydraulic lifter additive
  • Packing Type: Bottle
  • Item number: 8345
  • Our price: £14.49
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420083457
  • Condition: New
Details
In stock
£14.49
£48.30 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

Please note!
T380 K2 Engine Oil Additive 250ml
Article number: T380
Reviews - 15
  • Capacity [ml]: 250
  • Vehicle type: Car
  • Type: Viscosity stabiliser
  • Item number: T380
  • Our price: £16.49
  • Manufacturer: K2
  • EAN number: 5906534002181
Details
In stock
£16.49
£65.96 for 1 litre

price incl. 20% VAT

excl. delivery costs

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  • Capacity [ml]: 300
  • Packing Type: Bottle
  • Product line: CERA TEC
  • Item number: 21681
  • Our price: £30.49
  • Manufacturer: LIQUI MOLY
  • EAN number: 4100420216817
  • Condition: New
Details
In stock
£30.49
£101.63 for 1 litre

price incl. 20% VAT

excl. delivery costs

Sold by AUTODOC

Please note!
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Oil additives: everything you need to know about car care in our blog

Motor oil additives allow to correct and improve the working properties of lubricants. They are added right into the engine lubrication system. They reduce oil consumption, ensure quiet operation of the power unit, prevent its premature wear, help to reduce its smokiness and maintain the compression in the cylinders.

What are the types of motor oil additives

Depending on the main function:

  • Detergents remove the soot effectively and prevent the deposition of carbon, oxidized mixtures, resinous substances on metal parts of the engine.
  • Dispersants. They keep solid particles suspended. Prevent their deposition on unheated parts of the power unit.
  • Corrosion Inhibitors create a protective film on the surface of parts and slow down the corrosion.
  • Depressants. They prevent the formation of paraffin and ensure that the lubricant remains fluid even at low temperatures.
  • Antiwear additives reduce the friction between the contacting parts of the engine and protect them from wear and tear.
  • Stop Smoke additives suit vehicles with many kilometres covered. They increase viscosity of the lubricant, improve compression. Some agents lead to swelling of the seals, preventing leaks.
  • Antioxidant additives prevent oil from oxidizing at high temperatures.
  • Antifoam agents protect parts from oil starvation, improve the circulation of working fluids in the lubrication system.

Features of using motor oil additives.

  1. Some agents can be mixed with new oil only, others need to be added to the system after 2000 km before the routine replacement of the lubricant.
  2. Additives must be added in the amount stated by the manufacturer in the product instruction. Otherwise, the results of using these agents can be opposite.
  3. Before you use the product, make sure it is compatible with the type of the lubricant used in your car.
  4. Some agents should be preheated up to the temperature of 25–30 °С.
  5. Additives are usually poured through the oil filler cap having heated the power unit up to the operating temperature. You should be careful not to burn yourself.
  6. After that, you should start the engine and let it run for some time at idle. Some manufacturers recommend driving the car for half an hour in regular operation mode.

AUTODOC: convenient online shopping

When you buy such kind of automotive chemicals, you should consider a great number of factors including the total kilometres travelled and service conditions of a car. Our specialists will help you to make the right choice. In order to get a quick response, contact them. We often offer significant discounts. They will help you to buy high-quality motor oil additives at the best price.