WhatOil logo WHAT OIL
  • What oil for my car
  • EN
    • EN
    • LT
    • ES
    • HU

Vehicles using T engine list:

  • ROVER - 420 (100kW) 1995–1999

Recommended oil for engine T engine.

Ask AI about any Engine code
Questions strictly about engine codes (brand/model/engine type/production years).
Oil Specs Comparison
Castrol ON EV Transmission Fluid D1
Castrol ON EV Transmission Fluid D1
Full synthetic✔
Dry e-Motor use✔
Viscosity @ 40°C: 18 mm²/s✔
Viscosity @ 100°C: 4.6 mm²/s✔
Viscosity Index: 193✔
Brookfield @ -40°C: 3500 mPa·s✔
Oil specification key
✔ – Meets the required specification
❓ – Not explicitly stated (use caution; check your vehicle manual)
❌ – Does not meet required specification. Use may cause engine issues.

Answer generated by AI.

Oil specifications for T engine

SAE 10W-40
ACEA A3/B3
API SJ

Most common problems, symptoms & fixes for the T engine.

Engine T

Symptoms:
- Rough idling and hesitation during acceleration
- Engine misfires or stalling at low RPMs
- Excessive oil consumption or visible leaks
- Overheating or coolant loss without obvious external leaks
- Check engine light illumination with related fault codes

Diagnosis:
- Inspect ignition components (spark plugs, coils, wires) for wear or damage causing misfires
- Perform compression test to identify cylinder sealing issues
- Check for vacuum leaks around intake manifold and hoses
- Examine coolant system for blockages, thermostat failure, or water pump issues
- Scan ECU for stored fault codes to pinpoint sensor or actuator faults
- Inspect valve clearances and timing belt condition to ensure proper engine timing

Fixes:
- Replace worn spark plugs, ignition coils, or faulty wiring to restore proper firing
- Repair or replace leaking gaskets (head gasket, valve cover gasket) to stop oil leaks
- Replace faulty thermostat or water pump to resolve overheating problems
- Fix vacuum leaks by replacing cracked hoses or faulty intake manifold gaskets
- Adjust valve clearances and replace timing belt as per maintenance schedule to prevent timing-related issues
- Clear ECU fault codes after repairs and perform test drive to confirm resolution

Prevention:
- Follow manufacturer’s recommended maintenance intervals for spark plugs, timing belt, and coolant changes
- Regularly inspect and replace aging hoses and gaskets to prevent leaks
- Use quality engine oil and maintain proper oil levels to reduce wear and oil consumption
- Monitor engine temperature gauge and address overheating signs promptly
- Keep the ignition system components clean and in good condition to avoid misfires
- Periodically scan the ECU for fault codes to catch issues early before they escalate

By adhering to these diagnostic steps and maintenance practices, owners of the Rover 420 with Engine T can ensure reliable performance and longevity of their engine.
© 2025 Copyrights: WHAT OIL

* The engine oils listed on this website are general recommendations based on publicly available data. For the most accurate and suitable oil type for your vehicle, always refer to your car's owner manual or technical documentation. Oil specifications may vary depending on engine version, production year, driving conditions, and other factors. If in doubt, consult your vehicle manufacturer or a certified mechanic.