Silkolene Classic ST30 Gear Oil - 1 Litre

Silkolene Classic ST30 is a non-EP gear oil specifically formulated for use in classic Vespa gearb...

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eBaySILKOLENE CLASSIC ST30 NON-EP GEAR OIL For Classic VESPA (1 Litre)
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B&QB&Q - Silkolene Classic St30 Non Ep Vespa Gearboxes Gear Oil Api Gl3 1 Litre
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Product Information

Full details

Silkolene Classic ST30 is a specialized non-EP gear oil designed specifically for owners of classic Vespas seeking to preserve their vintage scooter's transmission. It provides excellent lubrication for smooth gear shifting and component protection in older engines, though it is strictly limited to applications requiring API GL3 specifications and should not be used in modern gearboxes requiring high-pressure additives.

All features

Model Part NumberSilkolene Classic St30
BrandSilkolene

Extended Product Information

FAQs

Can I use this in a modern scooter gearbox?

No. This oil is specifically for classic gearboxes. Modern scooters often require different viscosity grades or EP-rated lubricants.

What does 'non-EP' mean?

Non-EP means it does not contain Extreme Pressure additives, which are often corrosive to the soft yellow metals found in older transmissions.

How often should I change this oil?

Follow the service intervals specified in your original Vespa owner's manual, or annually if the bike sees limited usage.

Is this oil safe for wet clutches?

Silkolene Classic ST30 is designed for the specific gearbox requirements of these vintage machines; always confirm compatibility with your specific engine/transmission design.

Can I mix this with other gear oils?

It is strongly recommended to perform a full drain and flush when switching to or from this product to ensure the additive packages do not conflict.

Troubleshooting

Difficulty finding gears after oil change

Check the clutch cable tension and ensure the gearbox was not overfilled beyond the level plug.

Oil leaking from the drain plug

Inspect the drain plug crush washer for deformation; replace the washer if it shows signs of wear or compression loss.

Pros and Cons

Pros

  • Specifically formulated for classic Vespa gearboxes
  • Protects sensitive vintage transmission components
  • Reduces gear wear and noise
  • Ensures smoother clutch and gear engagement

Cons

  • Not suitable for modern gearboxes requiring EP additives
  • Requires adherence to specific API GL3 manufacturer requirements
  • Limited availability for non-vintage applications

Setup, Compatibility & Care

To ensure proper performance, always drain the old oil completely while the engine is slightly warm to facilitate flow. Verify that your specific Vespa model manual indicates a requirement for API GL3, non-EP lubricant.

  1. Place a catch pan beneath the gearbox drain plug.
  2. Remove the drain plug and allow all residue to exit the casing.
  3. Reinstall the plug, ensuring the crush washer is in good condition.
  4. Fill with the Silkolene Classic ST30 until the oil reaches the level plug or specified capacity.
  5. Properly dispose of waste oil at an authorized recycling center. Store the remaining product in a cool, dry place with the cap tightly sealed to prevent moisture contamination.

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