We are increasingly more people to desire to conduct the maintenance of our Opel Astra by themself, in truth, the labour in mechanics is very expensive and the least simple service can quickly go over 100€. The modern vehicles are more and more difficult and we can not conduct all their maintenance, but some acts like servicing its Opel Astra can be accomplished without too much problems. We are going to help you today to select the best engine oil for your Opel Astra , this will allow you to do your oil change without any headache and to ensure you an ideal engine actions. To do this, firstly, we will see how to select the right engine oil for your Opel Astra , then, in a second step, which are the 3 best engine oils for your Opel Astra , and finally, we will end with some recommendations on how to choose your engine oil.


How to select the best engine oil for your Opel Astra

We will consequently begin our content page with a small buying guidebook to help you select the best motor oil for your Opel Astra with peace of mind. To get this done, we will check out the criteria that differentiate the sort of oil and then we will check out the different types of motor oil. No matter the reason, you should know that if you select your engine oil properly, in addition to preserving it, you will lower your consumption and your CO2 emissions.

The specifications that differentiate engine oils for Opel Astra?

The purpose of the engine oil in your Opel Astra is to lubricate your engine to ensure that all the gears in it can run properly , and to preserve the integrity of each of its elements. In addition, this oil, which will limit all friction, will have other functions such as preventing corrosion, helping to dissipate heat in the engine and guaranteeing sealing . These oils can be bought in 5 litre cans. We will now check out the different criteria for purchasing engine oil for Opel Astra :

  • The cold viscosity of engine oil for Opel Astra (number in front of the letter “W”, which stands for “Winter”): This value will show the engine’s ability to begin cold depending on the viscosity of the oil. 0W means -30°C; 5W means -25°C, 10W means -20°C and 15W means -15°C. It is consequently up to you to adapt it to the weather conditions in which you drive your Opel Astra.
  • The hot viscosity of the engine oil for Opel Astra (value following the “W”): Value between 20 and 60, it is important to keep in mind that the higher the value, the thicker the layer of oil you will have when hot to protect your engine, and the lower the value, the less friction you will have when hot and consequently lower your consumption. Nevertheless, if you use your Opel Astra in the city, or with a sporty driving style, it’s better to protect it although hot.
  • The specifications : They are made on the back of the oil canister you can discover them such as “ACEA C1 – C4” or “VW 500. 01”, are only specifications of compatibility with different brands of cars, you have to check in the book of your Opel Astra that the oil in question is suitable for your engine.
  • Oil brands: Please be aware that the brand should have very little effect in your judgement, there are enough objective specifications in the composition of motor oil for Opel Astra to avoid having to focus on a subjective qualifying measure such as the brand, some car manufacturers have partnerships and will suggest you on certain brands, but it is not required to stick to these advice.

The different types of engine oil for your Opel Astra

  • “Mineral” engine oils 15w40: They are called mineral oils because they are principally made up of crude refined oil, which will give them maximum viscosity and consequently a thickness suitable for old engines that often consume oil. However, the truth that they are natural will bring about them to lose their lubricating properties more quickly, so it will be required to shorten the intervals between oil changes.
  • Semi-synthetic 10w40: This oil has a good quality/price ratio and is said to be semi-synthetic because it is still composed of certain components that will boost its lifetime. It is thus recommended for a polyvalent use of its vehicle. Furthermore, it favours a simpler cold begin than a mineral oil. However, you should make sure to change the oil every 10, 000km.
  • The “synthetic” oil 5w40: This sort of oil is really adapted to the recent Opel Astra engines, in truth, the protection of the engine will be maximum and the cold begin too. It is consequently a good choice either for people who drive in city centres, who have a sporty driving style, or who drive long distances and want to limit the frequency of their oil change.

The 3 best motor oils for Opel Astra

We now begin our second section in which we will focus on the best motor oils for Opel Astra , we will present our range and direct you to the best sellers so that you can produce your choice in the best conditions. We have made it a point to present only oils adapted to your Opel Astra, so you will not necessarily discover “10w40” in our selection.

Best Low-Cost engine oil for Opel Astra

We made the choice to select the two best engine oils for Opel Astra lowcost, so that regarding to your needs you can make your choice.

Castrol GTX 15W40

This quality oil will allow you to change or top up the oil level of your Opel Astra with complete peace of mind at an unbeatable price.

  • Value for money
  • Perfect if your engine begins to get miles on it.
  • Mineral quality.


  • Periodicity of emptying, about 10, 000km
  • Cold begin capacity if you live in a cold region

Mobil Super 3000 5W40

A prestigious brand that offers you a kit to do your oil change plus an additional 1 litre that you can use to check the oil level of your Opel Astra.

  • A 100% synthetic oil that will last with time.
  • Suitable for intensive use of your vehicle.
  • Price.


  • Less suitable for older engines.

Best mid-range engine oil for Opel Astra

Mobil Super 3000 FE 5W30

This synthetic oil is unbeatable value for money and will protect your engine, turbo or injection.

  • High quality synthetic material that will allow you to space out your drains.
  • A price for this interesting quality.
  • Suitable for all sort of pipes


  • Less suitable for older vehicles or vehicles with quite a lot of mileage.

Best premium motor oil for Opel Astra

Castrol Edge 5W30

A premium synthetic motor oil to protect your Opel Astra from friction, even in the worst conditions.

  • Top of the range engine oil appropriate for all engines from Opel Astra
  • Startup under all conditions.


  • You’re not gonna have the ability to get the price.
  • Not appropriate for older vehicles

Castrol Magnatec 0W30

An ultra-synthetic motor oil for your Opel Astra which will be adapted to the most demanding engines such as those equipped with Start and Stop.

  • Cold start under the worst conditions.
  • Suitable for the most demanding engines.
  • Ideal for engines built with Start and Stop


  • You’re not gonna have the ability to get the price.
  • Not appropriate for older vehicles or engines with more than 200, 000 kilometers

A few tips on choosing the right engine oil for your Opel Astra

And to end this content page, we will give you some suggestions on how to produce good use of the motor oil in your Opel Astra, and produce the right choice when you buy it:

    • Be aware that an open can of oil should be disposed of after one year and not be used anymore because it loses a good part of its capacity and may harm your engine.
    • Observe the recommendations of the oil producers and car manufacturers and use only oils compatible with the engine of your Opel Astra


  • The oil change intervals announced by the engine oil manufacturer are important, do not exceed the mileage indicated on the canister between each oil change


To find more tips on the Opel Astra, take a look at the Opel Astra category.