Motor oil & car: the right oil for your engine
Which oil fits, what do 5W-30 and ACEA mean, and when is what worth it? We explain plainly what really matters , without the workshop jargon.
The most important ruleMotor oil types at a glance
Fully synthetic to mineral , which type suits which car?
Compare top-rated products, check prices and order directly.
Motor oil is more than lubricant
The oil in the engine lubricates, cools, seals, keeps things clean and protects against corrosion. Five jobs at once. That is why not every oil suits every engine.
The good news: you don’t have to be a technician. There is one clear rule to follow, and a few terms you then sort out calmly.
All about motor oil & car
Car Motor Oil
Finding the right oil for your car , approval beats advertising.
Learn more →Motorcycle Oil
Why the wet clutch needs its own oil (JASO).
Learn more →Viscosity & Standards
5W-30, ACEA, API explained simply , what the codes mean.
Learn more →Gear & Axle Oil
Manual, automatic, differential , why other oils count here.
Learn more →Additives & Care
What oil additives really do , and what is pure marketing.
Learn more →The most important rule: the manufacturer approval
Forget all the advertising promises for a moment. What matters is not the brand, but whether the oil meets the approval (specification) of your engine. You will find this in your vehicle’s owner’s manual.
Makers like VW, Mercedes or BMW have their own approval numbers (e.g. VW 504 00, MB 229.5, BMW Longlife-04). On top of that come the general standards ACEA (European) and API (American). An oil that carries the required approval is the right one, whether expensive or cheap.
Honestly: many expensive „premium“ oils and cheap own-brands are blended in the same refineries and carry the same approvals. You often pay for the label. Look at the specification and you’re on the safe side.
Frequently asked questions about motor oil
Which motor oil does my car need?
Is expensive oil better?
What does 5W-30 mean?
All about oil
From the kitchen through care to the engine , discover every topic world.