If you drive a BMW, Mercedes-Benz, Audi, Volkswagen, Porsche, or Volvo, there's a good chance Pentosin fluid came from the factory in your power steering reservoir and hydraulic system. Here's what makes Pentosin special and how to choose the right product.
Why European Cars Require Specific Fluids
European manufacturers use tighter tolerances and more complex hydraulic systems than most American or Asian vehicles. Using the wrong fluid - particularly in power steering and hydraulic systems - can cause seal swelling, pump damage, and system failure within months. Pentosin fluids meet the specific OEM specifications that generic "universal" fluids cannot.
Pentosin Power Steering & Hydraulic Fluids
Pentosin CHF 11S (Most Common)
The most widely specified Pentosin fluid. Synthetic hydraulic fluid meeting BMW, Mercedes-Benz, Audi, VW, Porsche, Volvo, and Saab OEM specifications. The "11S" indicates synthetic formulation with a wide operating range.
- OEM for: BMW (most models), Mercedes-Benz (most models), Audi/VW (older models), Porsche 911, Volvo (older)
- Color: Yellow-green
- Use: Power steering, central hydraulic system, convertible top hydraulics, headlight washer systems
Pentosin CHF 202
Mineral-based hydraulic fluid for older European vehicles that specify mineral oil hydraulic fluid. Not interchangeable with CHF 11S - always check your owner's manual.
Pentosin ATF-44
Automatic transmission fluid meeting BMW, Mercedes, and Audi specifications not covered by standard Dexron/Mercon fluids. Required for ZF and certain Aisin transmissions used in European vehicles.
Pentosin Coolant Products
Pentosin Pentofrost E (OAT - Orange)
Extended life organic acid technology (OAT) coolant for most European vehicles. Compatible with aluminum, cast iron, copper, and brass. Pre-mixed 50/50 option available. Meets VW TL 774-D (G12) specification.
Pentosin Pentofrost NF (Si-OAT - Purple)
Silicated OAT formula for newer Audi, BMW, Mercedes, and Porsche models requiring Si-OAT coolant. Meets VW TL 774-G (G13) and BMW N600 69.0 specifications. Do not mix with orange OAT coolant.
How to Identify Which Pentosin Fluid You Need
- Check your owner's manual - it will specify the exact fluid specification
- Look for OEM spec numbers: CHF 11S, G12, G13, ATF-44
- Match the Pentosin product to the spec number
- When in doubt, use the CHF 11S for power steering - it's the most broadly compatible
Can You Mix Pentosin with Other Brands?
For power steering/hydraulic: only mix with other CHF 11S-spec fluids. Never mix mineral and synthetic hydraulic fluids.
For coolant: never mix OAT (orange) with Si-OAT (purple) or IAT (green). If mixing brands, ensure both meet the same OEM specification.
Shop Pentosin Fluids
We carry Pentosin CHF 11S, CHF 202, ATF fluids, and Pentofrost coolants for European and domestic vehicles.
