Motorex Top Speed Synthetic 4T Engine Oil - 15W/50 - 1 Litre

Motorex Top Speed 4T 15W/50 is a high-performance synthetic engine oil designed specifically for m...

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eBayKTM 390 Duke 13-20 - Motorex Top Speed Synthetic 15W/50 4T Engine Oil 1 Litre
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Product Information

Full details

Motorex Top Speed 4T 15W/50 is a high-performance synthetic lubricant engineered for owners of modern four-stroke motorcycles who demand reliable engine protection and smooth mechanical operation. It is an ideal choice for riders operating high-revving engines under demanding conditions, though it is specifically formulated for 4-stroke applications and may not be suitable for older engines requiring specific mineral-based viscosities.

All features

Model Part NumberOILTOPS1L15W50
BrandMotorex

Extended Product Information

FAQs

Is this oil suitable for 2-stroke engines?

No, this product is specifically formulated for 4-stroke engines and will cause severe damage if used in a 2-stroke system.

Can I mix this with other brands of oil?

While it is technically possible, it is highly recommended to perform a full drain and replace with one type of oil to ensure the additive package performs as intended.

How often should I change this oil?

Always follow the service interval recommendations outlined in your specific motorcycle's owner's manual.

What does 15W/50 mean?

15W indicates the oil's viscosity when cold (winter), while 50 indicates the oil's thickness at high operating temperatures.

Does this oil meet JASO standards?

Yes, Motorex 4T lubricants are designed to meet or exceed common industry standards for motorcycle performance and wet clutch compatibility.

Troubleshooting

Clutch slippage after oil change

Verify that your motorcycle's clutch system is compatible with synthetic oils and ensure the correct viscosity was used.

Oil pressure warning light stays on

Check the oil level immediately; if levels are correct, inspect the oil filter for proper seating or potential blockage.

Oil appears dark shortly after change

This is normal as the oil's detergent additives are working to clean deposits left behind by previous lubricants.

Pros and Cons

Pros

  • Excellent thermal stability under heavy load
  • Promotes smooth and precise gear shifting
  • Prevents clutch slippage in 4-stroke motorcycles
  • Reduces internal engine wear and tear
  • Maintains consistent performance until the next oil change

Cons

  • Not intended for 2-stroke engine systems
  • May be overkill for low-performance commuter bikes
  • Higher cost compared to basic mineral oils

Setup, Compatibility & Care

Before performing an oil change with Motorex Top Speed 4T, ensure your motorcycle is compatible with the 15W/50 viscosity grade by consulting your owner's manual. Always warm the engine briefly to help the old oil drain completely from the crankcase. Ensure the bike is on a level surface (or a paddock stand) during the drain process. When refilling, use a clean funnel and measure the exact volume required by your engine's manufacturer specifications to avoid overfilling, which can cause excessive pressure and potential seal leaks. Store any remaining oil in a cool, dry place with the cap tightly sealed to prevent contamination.

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