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Engine oil for auto

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Physical and chemical properties

Engine Oil for car makers:
  • Motor oil MERCEDES-BENZ
  • Motor oil BMW
  • Motor oil VW
  • Motor oil FORD
  • Motor oil AUDI
  • Motor oil PEUGEOT
  • Motor oil NISSAN
  • Motor oil TOYOTA
  • Motor oil RENAULT
  • Motor oil OPEL
  • Motor oil HONDA
  • Motor oil FIAT

Motor oil is a technical liquid in the car engine lubricating system. It lowers friction of power unit parts, due to which its lifetime limit increases, operation efficiency improves and fuel consumption is reduced. It promotes cooling of engine components, cleans them from dirt and carbon deposit, protects against corrosion.

Engine oils classification

  1. SAE. It is based on viscosity characteristics of oils at different temperatures. It is developed by the community of motor transport engineers SAE International. Due to this classification, all lubrication materials can be divided into winter, summer and all-season ones.
  2. API. According to the classification of American Petroleum Institute, all lubrication materials can be divided into the following groups: S – for petrol power units, C and F – for diesel ones. According to engine features, each of them is divided into service categories also marked with letters. Products of SN, CK-4 and FA-4 service categories comply with the latest requirements.
  3. ACEA. European Automobile Manufacturers Association distinguish 3 categories of lubricants according to operation characteristics:
    1. А/В. For diesel and petrol engines of different configurations.
    2. C. For new power units with catalysts or particulate filters.
    3. E. For diesel engines of cargo vehicles and special vehicles.

Types of motor oils according to composition

In classifying basic oils for power units, American Petroleum Institute takes into account not only their composition but also manufacturing technique, thus dividing all products into 5 groups:

  1. Products made by petroleum distillation without additional treatment.
  2. Petroleum distillates which underwent additional refinery.
  3. Petroleum distillates made by the method of structured refinery with preliminary multiple hydrocracking using hydrogen.
  4. Short-chain polyalphaolefins made by chemical synthesis.
  5. Chemically synthesized polyether-based products.

More common classification involves division of all products according to composition into 3 groups:

  1. Mineral. They include lubricants based on I and II groups according to API. They are inexpensive and fit engines with high mileage well.
  2. Semi-synthetic. Their composition includes no less than 25% of III, IV or V group oils. They are more effective than mineral ones, and cheaper than synthetic.
  3. Synthetic. Their composition includes no less than 30% of III, IV or V group products. They have an extended replacement interval and dissolve additives well.

Buycarparts.co.uk: high quality oils for your car

You will find more that 2,000 car oils of 13 brands in our online-shop. Motul, Liqui Moly, Castrol, Febi Bilstein, Startol, Vaico, Swag, Elf, Aral are among the most popular manufacturers. Due to numerous promotions and discounts, here you can buy motor oils at the most affordable price.

Note: replacement of oil should be performed at a service station.

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ratings and reviews

Good Product .. Very Good Price .. Delivered on time and items were packed very well .. Keep up the good work and will be doing more business with you.


Knock-out !. Excellent price. Double quick delivery. Well chuffed. Will definitely use again. Many thanks. TC

Frequently asked questions
Steering Gear
  • P.L. 2021-02-26
  • I have a R/Hand drive Lupo (DUXXXXX) will this steering rack fit or is only for Left Hand drive?

Outside Mirror
  • I.H. 2021-02-26
  • What warranty does the wing mirror come with? What are postage costs to the UK? Thanks.

Brake Pad Set, disc brake
  • F.A. 2021-02-25
  • does it include wear sensor indicator and if its not included is it prepared for it?

Clutch Kit
Wheel Bearing Kit
  • T. 2021-02-21
  • Could you please give me the dimensions of the inner bearing diameter? Many thanks.

Charger Intake Hose
  • C.B. 2021-02-21
  • I`d like this one Charger Intake Hose 81850 BUGIAD for my MB W204 C200 diesel manufactured in 2011 engine code 651 but I want to find its dimensions - length and diameters on both sides? could help with this info? Kind regards

Coil Spring
  • S. 2021-02-19
  • Hi, I would like to know if this coil spring is coming with the strut top mount, please? Thank you in advance for information

Alternator Freewheel Clutch
  • R. 2021-02-16
  • Hi! Will it fit my car with automatic transmission. 2013, Bmw 535i F10 ?

Repair Kit, stabilizer suspension
  • B. 2021-01-01
  • Please can you advise if the repair kit (Repair Kit, stabilizer suspension V30-2372 VAICO) is provided with the bolt that connects the bush clamps together? Also can you tell that the repair kit is for both sides?

  • W. 2020-12-26
  • does this grease have a plate on top of the grease to make it easy to fill a grease gun?

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