Engine Oil with VW 505 00

VW 505 00 is the VW Group's diesel approval for vehicles on a fixed change interval - the older world before longlife. It is easily confused with 505 01 (unit injector) and with 504 00/507 00 (longlife). Your number is in the owner's manual, or in the oil finder.

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Telling the VW numbers apart

Four approvals that are regularly confused within the VW Group:

**502 00** - petrol engines on a fixed interval
**505 00** - diesel engines on a fixed interval, without unit injector (Pumpe-Düse) injection
**505 01** - diesel engines with **unit injector (Pumpe-Düse)** injection (many 1.9 and 2.0 TDI built roughly between 2000 and 2010). These engines make particular demands on shear stability; a plain 505 00 oil is not enough there.
**504 00 / 507 00** - longlife, low ash, for vehicles with a flexible interval and a particulate filter

Many oils carry several of these numbers at once, 502 00 and 505 00 together for instance. What matters is that **your** number is among them.

Which vehicles call for 505 00

Essentially diesels from VW, Audi, Skoda and Seat on a fixed service interval, mostly from before the longlife era, plus some later models where the owner chose the fixed interval. Distributor-pump diesels (SDI, earlier TDI) and vehicles without a particulate filter are the common cases.

If your vehicle has a diesel particulate filter, 505 00 is as a rule not the right answer - the manual will say 507 00 instead.

Viscosity grades in this approval

The usual ones are 5W-40 and 10W-40, more rarely 5W-30. That is the practical difference from the longlife world: there, thin 0W-30 and 5W-30 dominate; here it is the more load-bearing 40 grades - matching engines built around them.

A fixed interval means: keep an eye on the calendar

Without a flexible display, the requirement in the manual applies, typically a mileage limit and 12 months, whichever comes first. The 12 months are routinely overlooked: a car covering 6,000 kilometres a year needs the same change as one covering 15,000, because condensation and fuel dilution depend on time, not on distance.

And one point that is regularly underestimated on unit injector engines: the oil is sheared unusually hard there, because the injection elements are driven off the camshaft. An oil that only just meets the required approval loses its viscosity faster here than the data sheet suggests.

Frequently asked questions

What is the difference between VW 505 00 and 505 01?

505 01 is the approval for diesels with unit injector (Pumpe-Düse) injection and sets higher demands on shear stability. An oil with 505 01 also covers 505 00, but not the other way round: if your engine calls for 505 01, a plain 505 00 oil is not enough.

Can I use a longlife oil with 507 00 instead of 505 00?

Not without checking. 507 00 is low ash and designed thinner; VW does not release it across the board for engines on a fixed requirement, and expressly not for unit injector engines. The number in your owner's manual is what counts.

Does 505 00 apply to petrol engines as well?

For petrol engines VW names 502 00. Many oils carry both numbers, in which case the same product suits both engine types - check that the number given for your vehicle is printed on the pack.

Which viscosity is usual with VW 505 00?

Mostly 5W-40 or 10W-40. Which one is approved for your engine depends on the engine variant and on the region - the oil finder shows it together with the matching oils.