Frequently asked questions / Engine oils for cars and light commercial vehicles

What is important to read on the product label when buying oil?

Along with the performance characteristics (ACEA and API) and viscosity grade, attention should be paid to the vehicle manufacturers’ specifications (OEM).

What is an OEM specification?

OEM (Original Equipment Manufacturer) specifications regulate concrete parameters and values that must be met by factory- and service-fill oils.

I have been recommended oil ACEA A3/B4-08, MB 229.3, SAE 5W-40. What oil should I buy?

The simple answer is: „Any motor oil meeting the specifications is appropriate”

A good choice is a Prista Oil product such as:



-ACEA A3/B4-08

-MB 229.1, MB 229.3

-VW 502 00 / 505 00

-Opel GM-LL-B-025

-Renault RN 700 / 710

-Porsche A40

Can I buy engine oil from hypermarkets offering food products or building materials?

Indeed, in the automotive products departments of such hypermarkets engine oils are available at attractive prices. The buyers will see the brand and viscosity grade written in large letters on the product. The rest appears in a very small font somewhere on the packaging. The price is low, even dangerously low. What we have in this case is an impulsive buy of a product associated with a particular brand and price, but are its quality parameters satisfactory? Everyone can answer the question for themselves. Another issue is the appropriate packaging and quantity. Engine oil can be purchased in packages or in bulk from a drum dispenser. In the second case, the cleanliness of the can and its proper storage are of utmost importance. Good choices are the auto centres Prista, Expert Oil Service, and also the official sale and service representative of the manufacturer of your vehicle.

Can I buy Prista and Техасо oils from a petrol station?

Prista and Техасо engine oils are readily available from the entire “Petrol” AD chain of petrol filling stations and many other retailer outlets. Even if refilling is necessary you can easily obtain the required amount. This will save you the risk of topping up with another product.

I was recommended a certain oil brand. Is it better than the others?

The change of engine oil is sometimes just for "fashion". Often users insist on a trade brand without considering the fact that not all cars achieve an optimal performance with certain types of oil.

Is synthetic oil appropriate for all motor vehicles?


Synthetic oils are the highest-quality products in the market, but their use is unsuitable in older cars in poor technical condition. Quite often the improper use of synthetic oils is the reason for the disappointment of many users.