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FEIBI LUBRICANTS
COMMON LUBRICATION ISSUES & SOLUTIONS GUIDE
*Technical Bulletin TB-2024-08 | July 2024 Release*

1. OIL CONSUMPTION PROBLEMS

Symptoms

Oil level drops >0.5L/1,000km

Blue exhaust smoke

Spark plug fouling

 FEIBI Recommended Solutions

For Turbo Engines: Switch to FEIBI TurboGuard 5W-40 (high film strength)

High-Mileage Engines: Use FEIBI High Mileage 10W-30 (seal conditioner additives)

Immediate Fix: FEIBI Stop-Leak (temporary measure only)

 2. OIL PRESSURE WARNINGS

Troubleshooting Matrix

Pressure Reading	Possible Causes	FEIBI Solution
Low at All RPMs	Wrong viscosity, pump failure	Verify oil grade matches manual → Test with FEIBI 15W-50 diagnostic oil
Low at Idle Only	Bearing wear, sensor fault	Install mechanical gauge → Check for metal in oil
High Pressure	Clogged filter, cold oil	Change filter → Verify thermostat operation

Critical Values

Minimum: 10 psi per 1,000 RPM

Danger Zone: <5 psi at idle (stop engine immediately)

 3. OIL DEGRADATION ISSUES

Quick Identification Guide

Oil Condition	Visual Clues	Corrective Action
Oxidation	Dark color, burnt smell	Reduce change interval → Use FEIBI SynMax (high TBN)
Fuel Dilution	Gas smell, thin consistency	Fix injectors/rings → Switch to FEIBI FuelShield 5W-30
Coolant Mixing	Milky residue	Head gasket test → Flush with FEIBI System Cleaner

4. NOISY HYDRAULIC LIFTERS

Step-by-Step Fix

1. Initial Treatment: Add FEIBI HydraQuiet (300ml per 5L oil)

2. If Persists:

Perform 2x short-interval changes (500km) with FEIBI Flush

Replace with FEIBI ProLift 5W-20

3. Chronic Cases:

Remove lifters → Ultrasonic clean → Soak in FEIBI Assembly Lube

 5. COLD START PROBLEMS

Arctic Conditions (-30°C and Below)

Before Start: Use FEIBI Arctic Primer (pre-lubes system)

Oil Choice: FEIBI Polar 0W-20 (flows at -45°C)

Post-Start: Idle 30 sec before driving

 Moderate Cold (0°C to -20°C)

Battery maintainer + FEIBI ColdFlow 5W-30

 6. TURBOCHARGER PROTECTION

Critical Maintenance

Pre-Shutdown Cooling: Idle 60 sec after hard driving

Oil Feed Line Inspection: Replace if >5 years old

Recommended Product: FEIBI TurboCore 5W-40 (ceramic-enhanced)

 Failure Warning Signs

Shaft play >0.8mm

Oil coking at turbine housing

 7. ELECTRIC VEHICLE LUBRICATION

Unique Challenges

Gear Oil Noise: FEIBI EV-Silent 75W-90 (silicon-free)

Coolant Contamination: Annual dielectric testing

Bearing Currents: Use FEIBI E-Shield conductive grease

 8. WARRANTY CLAIM SUPPORT

Required Documentation

1. Oil sample (100ml in FEIBI test vial)

2. 3x service receipts

3. Engine error codes (if any)

 Submit via: FEIBI Warranty Portal | Email: warranty@feibi.com