TOP solutions from PEXOL
Traffic jams are not just about nerves and wasted time; they are a hidden killer of engine oil. In urban cycles, oil ages 30-40% faster: short trips, frequent starts, and overheating in gridlock deplete additives, causing oxidation and soot buildup. We analyze the mechanism of destruction and how PEXOL protects your engine in real-world conditions.
Why Traffic Jams Reduce Oil Life
Short Trips (“Running to the Store”). If the engine doesn’t reach operating temperature (above 80-90°C), condensation and fuel accumulate in the crankcase. This leads to sludge formation and accelerated depletion of the Total Base Number (TBN). One kilometer in city traffic can stress the oil as much as several kilometers on a quiet highway.
Overheating in Traffic. Idling with the air conditioning or heater on impairs engine cooling. In the piston ring zone, temperatures can spike to 150-180°C. This triggers thermal oxidation of the base oil: it thickens, and varnish deposits form.
Soot and Deposits. Constant acceleration and deceleration lead to a richer air-fuel mixture in the cylinders. Products of incomplete combustion (soot) penetrate the oil, increasing its viscosity and causing abrasive wear. Oil channels become clogged, leading to oil starvation.
The Bottom Line: In severe city driving conditions, car manufacturers often recommend shortening the oil change interval to 7,000-10,000 kilometers instead of the standard 15,000 km.
How PEXOL Counters the City Killers?
PEXOL engineers have adapted the oil line-up for the realities of heavy urban cycles. Here are the key parameters to pay attention to:
1. Thermal-Oxidative Stability
Products from the P3, P5, and P7 lines undergo strict laboratory testing for oxidation resistance. For example, PEXOL P3 5W-30 A5/B5 has demonstrated high resistance to elevated temperatures during independent tests. This means the oil won’t turn into “varnish” on engine parts after thousands of starts and stops.
Approvals: Ford WSS-M2C913-D, Renault RN0700, Jaguar Land Rover STJLR.03.5003
Specifications: ACEA A5/B5, API SL/CF
- Provides wear protection for Start-Stop engines
- Recommended for engines with low value of high-temperature viscosity HTHS
- Effectively protects the engine
- Provides extended drain interval
2. Low Evaporation Loss
The less oil escapes into the exhaust via the crankcase ventilation system, the lower the consumption. The synthetic PEXOL P3 5W-40 has a flash point of 230°C — a high figure guaranteeing low evaporation loss (NOACK).
Item
5W40PX078
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Approvals: VW 502.00/505.00, MB 229.3/226.5, BMW Longlife-01, Porsche A40, GM LL-B-025, Renault RN0700/RN0710, Fiat 9.55535-M2
Specifications: ACEA A3/B4, API SN/CF
- Excellent thermal and oxidative stability throughout the entire replacement interval
- Ensures engine cleanliness
- Efficient engine operation in low temperature conditions
- Reduces oil consumption due to its low evaporation rate
3. Detergent and Dispersant Properties
Oil must not only clean but also hold contaminants in suspension, preventing them from clogging oil passages and settling in the pan. High-quality additives in PEXOL oils ensure engine part cleanliness throughout the entire service interval.
4. Wear Protection During Cold Starts
A high viscosity index ensures the oil remains fluid enough in cold weather for quick circulation but forms a strong film in a hot engine stuck in summer traffic. PEXOL oils meet the stringent approval requirements of manufacturers like BMW, Mercedes-Benz, VW, and Ford.
PEXOL’s Recommendations for City Driving
- Don’t Stretch the Change Interval. Manufacturers often provide average figures (15,000 km), but these are calculated for ideal European highways. In the reality of city driving (especially taxi mode), it is recommended to shorten the interval to 7,000-10,000 km.
- Check the Approvals. Choose oil approved by your car’s manufacturer specifically for severe operating conditions. For example, oils with VW 502.00/505.00 or MB 229.5 approvals are designed for extended intervals and high loads.
- Listen to Your Engine. If the oil has lost its properties, you might hear it through unusual noises from hydraulic lifters during warm-up — a sign that the oil pump cannot build proper pressure due to viscosity loss.
Conclusion
Traffic jams are an unavoidable reality for modern drivers. We can’t eliminate them, but we can minimize the damage to our engines. Using high-quality oil with the correct viscosity and modern additives is the only way to preserve engine life where the odometer stands still, but operating hours relentlessly increase.
