Inforca International

Specs & Product Selection

ACEA C3 vs. C2 vs. C4: Which Oil Do You Need?

C2, C3 and C4 differ in HTHS viscosity, ash and TBN limits. Compare them side by side, then match the oil to your OEM specification.

API CK-4 vs. FA-4: Choosing Diesel Engine Oil

CK-4 and FA-4 are current heavy-duty diesel categories, but FA-4 is not backward compatible with CK-4. Match engine approval, viscosity, and duty.

AW ISO 32, 46, and 68 Hydraulic Oil Compared

ISO VG 32, 46, and 68 identify hydraulic-oil viscosity at 40°C, not quality. Select by equipment specification, operating temperature, pump, and additives.

Best Engine Oils: How to Choose Without Guessing

The best engine oil is the verified fit for the engine, viscosity, API or ACEA category, OEM requirement, duty cycle and maintenance schedule.

BMW LL-04 vs. MB 229.51 vs. VW 507.00

BMW LL-04, MB 229.51, and VW 507.00 are separate OEM oil specifications. Learn where they overlap and why one does not replace another.

Can Modern CK-4 Oil Replace Old API CC or CD Oil?

API CC and CD are obsolete. Modern CK-4 may fit many older four-stroke diesels, but two-stroke, monograde, fuel, and OEM exceptions require review.

Can You Mix Synthetic and Conventional Motor Oil?

Compatible oils may be mixed for an emergency top-off when requirements fit, but mixing dilutes benefits and does not create an approved product.

GL-4 vs. GL-5 Gear Oil: When to Use Each

GL-4 and GL-5 describe different gear-oil service levels. Learn why GL-5 is not an automatic GL-4 replacement and how to verify the right fluid.

How Often Should Synthetic Oil Be Changed?

Change synthetic oil according to the vehicle schedule or oil-life monitor. Time, trips, heat, load, engine condition and the exact oil all matter.

How to Choose the Right Engine Oil

Choose engine oil by the vehicle manual, SAE viscosity, API or ACEA category, exact OEM requirement, operating conditions and verified claim.

MANNOL vs. PureGuard: Which Line Fits?

MANNOL emphasizes technical breadth and European coverage; PureGuard emphasizes practical commercial coverage. Choose by specification and use.

Matching Inforca Oils to OEM Approval Requirements

Match Inforca products to dealership requirements by exact SKU, viscosity, specification, approval status, current TDS, and availability.

OAT vs. IAT vs. NOAT Coolant: Key Differences

OAT, IAT, and NOAT identify coolant inhibitor approaches. Learn what each term means, why color is unreliable, and how to select coolant correctly.

RTV Silicone Sealant: Grey vs. Black vs. Red

Black RTV often favors flexibility and oil resistance, grey favors rigid close-tolerance joints, and red favors heat. Verify the exact product first.

Synthetic Engine Oils: Benefits, Limits and Selection

Synthetic oil can support low-temperature flow and oxidation control, but the correct viscosity, specification and vehicle schedule still come first.

UHPD vs. SHPD Diesel Oil: What's the Difference?

UHPD and SHPD are market descriptions, not standalone specifications. Compare diesel oil by API, ACEA, OEM approval, viscosity, and operating conditions.

Universal vs. OEM-Specific ATF

A universal ATF covers multiple listed applications; an OEM-specific fluid targets a narrower requirement. Compare coverage without guessing.

VW 504.00/507.00 Explained

VW 504.00 generally covers selected gasoline engines, 507.00 selected diesels. See how they relate to ACEA C3, approved viscosities, and how to verify an oil.

What Is ACEA C3 Engine Oil?

ACEA C3 is an aftertreatment-compatible European oil category with mid-SAPS limits and HTHS of at least 3.5 mPa·s. OEM specs still control.

What Is UHPD Oil and When Is It Needed?

UHPD describes oils for very demanding diesel service but does not replace a specification. Select by API, ACEA, and engine approval.

Which MANNOL Oil Matches Your European Vehicle?

Match MANNOL oil by VIN, engine, OEM specification, viscosity, and approval status, not by vehicle brand alone. Use this documented lookup process.