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Redex 5W-30 C2 Engine Oil Review: Suitable for Peugeot and Citroën?

REDEX 5w-30 C2 Fully Synthetic Engine Oil for Peugeot & Citroen, 2 Litre
4.7
[Fully Synthetic Formula]  High-performance 5W-30 low-SAPS oil for modern petrol and diesel engines.
[Exhaust After-Treatment Safe]  Compatible with exhaust after-treatment units, protecting DPF and catalytic systems.
[Meets ACEA C2 & PSA]  Approved for ACEA C2 and PSA B71 2290 engine specifications.
[Longer Service Intervals]  Lasts longer between changes, saving money and reducing used-oil waste.
[Superior Temperature Stability]  Maintains protection across extreme temperatures to reduce engine wear.
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Engine oil for modern Peugeot and Citroën cars promising high-performance lubrication, Redex 5W-30 C2 Engine Oil. Peace of mind for drivers who want reliable protection and fewer visits to the garage. Does the formulation meet manufacturer requirements and extend service intervals?

⚡ At a Glance
  • Viscosity Performance: Stable 5W-30 viscosity across a wide temperature range
  • Best for: Modern Peugeot and Citroën petrol and diesel vehicles requiring ACEA C2 and PSA B71 2290
  • Not ideal for: Engines that explicitly require ACEA grades other than C2 or different manufacturer-specified oils

Fully synthetic 5W-30 low SAPS oil formulated to ACEA C2 and recommended for PSA B71 2290 applications. Suitable for petrol and diesel engines including those fitted with exhaust after-treatment units.


Reduced Engine Wear - thanks to fully synthetic 5W-30 low SAPS formulation

Fully synthetic base oils maintain film strength and resist breakdown across higher and lower temperatures than conventional oils, helping to preserve viscosity under load. The additive package is tailored to reduce metal-to-metal contact during cold starts and sustained high-load running.

Stronger lubrication lowers engine wear in both daily commuting and longer motorway runs. Expect steadier oil performance during temperature extremes, which supports engine longevity.

After-treatment Compatibility - with low SAPS chemistry meeting ACEA C2

Low SAPS formulation reduces sulphated ash, phosphorus and sulphur levels to match ACEA C2 requirements, and the product is recommended for applications requiring PSA B71 2290. The reduced levels help protect diesel particulate filters and catalytic converters from premature fouling.

Helps keep exhaust after-treatment systems functioning as intended, reducing the risk of costly regeneration or replacement. Suitable for vehicles fitted with modern emission-control hardware.

Fewer Oil Changes - thanks to premium synthetic longevity

Premium synthetic formulation resists thermal and oxidative breakdown better than conventional oils, which extends useful life between scheduled services. The specification notes that additional oil treatments are not required when using this oil.

Longer intervals between oil changes reduce workshop visits and lower waste oil volumes. Maintenance routines become simpler and more convenient for owners.

✨ The 4 Key Reasons for Redex 5W-30 C2 Engine Oil
  1. Fully synthetic formulation - Extends oil life between services, reducing change frequency.
  2. Low SAPS chemistry - Helps preserve exhaust after-treatment efficiency and limits deposits.
  3. No additional oil treatments needed - Simplifies maintenance and avoids extra service steps.
  4. Stable performance in extremes - Maintains lubrication under both hot and cold conditions.
📋 Technical Details at a Glance
  • Engine oil type: Fully synthetic low SAPS
  • Viscosity: 5W-30
  • ACEA grade: ACEA C2
  • Manufacturer recommendation: PSA B71 2290
  • Suitable for: Peugeot and Citroën petrol and diesel engines (including exhaust after-treatment units)
❓ Frequently Asked Questions

Q: Is this oil suitable for my Peugeot or Citroën?

A: The formulation is recommended for modern Peugeot and Citroën petrol and diesel vehicles requiring ACEA C2 and PSA B71 2290; always check manufacturer guidance or use the Redex Oil Finder lookup.

Q: Can it be used on cars with diesel particulate filters or catalysts?

A: Low SAPS chemistry makes the oil appropriate for engines fitted with exhaust after-treatment units that require an ACEA C2 grade.

Q: Do I need extra oil treatments when using the oil?

A: No additional oil treatments are required, as the premium synthetic formulation is designed to last longer between service intervals.

🏆 Our Verdict

Suitable for owners of modern Peugeot and Citroën petrol and diesel cars that specify ACEA C2 or PSA B71 2290. Fully synthetic low SAPS formulation balances engine protection with compatibility for after-treatment systems while supporting longer service intervals. Without price information, the reduced service frequency and simplified maintenance suggest strong long-term value for many drivers.