The most technologically advanced TOTAL RUBIA heavy duty engine oil.



What does PC-11 stand for and what are the categories?

Proposed Category 11 is divided into two categories: API CK-4 and FA-4 also known as PC-11A and PC-11B.

When are CK-4 & FA-4 oils going to appear in the market?

The official licensing date is December 1, 2016.

What is API?

The American Petroleum Institute (API) is a nonprofit trade association that represents the oil and natural gas industry and is responsible for developing and maintaining global engine oil performance standards.

What caused the creation of these new engine oil categories?

Fuel economy improvements are being legislated by Phase II greenhouse gas (GHG) emission rules promulgated by the Environmental Protection Agency (EPA) and the National Highway Traffic Safety Administration (NHTSA).

Why are FA-4 oils not backwards compatible?

FA-4 oils are designed at lower viscosity grades for next-generation diesel engines to help maximize fuel economy without sacrificing engine protection. These oils have limited backwards compatibility because some older engines were not designed to operate with lower viscosity grades.

Will CK-4 and FA-4 oils be mineral, semi-synthetic or fully synthetic?

There is no API requirement on the type of base oil. CK-4 oils will be mineral, semi-synthetic or fully synthetic, depending on the oil specification required.

Can I use CK-4 & FA-4 oils in my current or older vehicles?

Yes for CK-4 at the same viscosity grades. For FA-4 due to the new low viscosity limits we recommend consulting with the engine OEM first.

What would happen if FA-4 oils are used in older vehicles?

We are working with our partners to determine the effects of FA-4 type oils used in older vehicles.

How are TOTAL FA-4 oils different from TOTAL Fuel Economy xW-30 oils?

FA-4 oils have a lower High Temperature High Shear (HTHS) viscosity. Reducing HTHS from 3.5 to 3.0 cP would bring an extra 0.5% Fuel Economy compared to conventional FE oils according to the consensus reached by most OEMs.

Will it mean longer drain intervals?

Most of the new oil formulations are still under development by oil companies.

However, it will be up to the OEMs to decide how they intend to leverage on this expected performance improvement in terms of the recommendations they make for their new products.

What will be the viscosity grades of these new oil categories?

For API CK-4, commonly available viscosity grades will be:

  • SAE 5W-30
  • SAE 10W-30
  • SAE 5W-40
  • SAE 10W-40
  • SAE 15W-40

For FA-4, typical viscosity grades will be:

  • SAE 5W-30
  • SAE 10W-30
  • 0W-30

Does lower viscosity mean less protection?

No. Although the viscosity is lower for a FA-4 product it still has to meet the same engine test requirements as the heavier CK-4 product.

Can the oils be mixed during the changeover?

If you’re going from CJ-4 to CK-4 we do not see a problem with mixing because you are just adding more antioxidants. If you are changing to FA-4, we recommend to drain and then refill the oil.