Rover 25 1.4 16v 2003 manual states specification ACEA A2 (but is now obsolete) use any brand Grade10w 40 Fully or part synthetic.
what oil viscosity should i use a gsx 1400
Land Rover specifies using 10W/30 for a temperature range of +14 degrees and above. Temps below +14 degrees use 5W30 . Oil and filter change requires 6.1 Quarts.
Synthetic Oil
For a Rover 214 with an S registration, it is generally recommended to use 10W-40 or 15W-40 motor oil, depending on the engine type and operating conditions. Always check the owner's manual for the specific oil specifications and recommendations for your particular engine variant. Using the correct oil grade is essential for optimal engine performance and longevity.
I NEVER USE A MULTI GRADE OIL I USE A STRAIGHT 30 WEIGHT DETERGENT
The grade of oil your vehicle uses is determined by what geographical area you live in. The colder the weather the thinner the oil. The warmer it gets the thicker the oil. Most vehicles use 10-w40 grade Motor oil. Your handbook will have the specific grade that your car needs to use.
Premium Unleaded
I use what the vehicle manufacturer calls for.
No, use exactly what is recommended by the manufacture.
8.5. I use the BMY full synthetic 5w-30
Use any 10 - 40 W oil. You can also use a single grade 40 W oil if the mower is old and much used.
The Land Rover TD5 Defender typically requires 5W-30 or 10W-40 engine oil, depending on the operating conditions and temperature. It's important to use a high-quality oil that meets the specifications outlined in the owner's manual, such as ACEA A3/B3 or API SL. Always check the manufacturer's recommendations for the most accurate guidance.