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Designed for Australian conditions
Engineered to withstand the harshest climates and built to last with premium materials, this product is crafted with care for everyday Australian life.
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40,000+ Australian customers · Australian-owned & operated
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Overview
Nulon 300ml Engine Stop Leak is designed to reduce oil leaks in petrol, diesel, and LPG engines, providing a solution for vehicles experiencing oil loss.
The Nulon 300ml Engine Stop Leak is a formulated product aimed at addressing oil leaks and exhaust smoke in various engine types. It is suitable for use in petrol, diesel, and LPG engines, and can also be applied in manual gearboxes and differentials. This product works by rejuvenating hardened or shrunken seals, thereby reducing oil consumption and oil burning. It is particularly effective if a vehicle is observed blowing blue smoke at start-up or during acceleration from a standstill or downhill.
Features
- Reduces oil leaks in petrol, diesel, and LPG engines.
- Can be added to the oil sump if the vehicle is losing or leaking oil.
- Rejuvenates hardened or shrunken seals.
- Applicable in manual gearboxes and differentials.
- Reduces oil consumption and exhaust smoke.
Specifications
| Dimensions (W x H x D) | 90mm x 230mm x 40mm |
| Weight | 0.272kg |
| Volume/Size | 300ml |
Nulon 300ml Engine Stop Leak is an effective solution for managing oil leaks in various engine types.
Specifications
Specifications will vary by product. Please refer to the product description above or contact us before ordering if you need a specific measurement.
Shipping & Returns
Shipping
Orders are dispatched from our Sydney and Melbourne warehouses within 1–2 business days of payment. Delivery times from Sydney:
- NSW & ACT: 2–5 business days
- VIC & QLD: 2–7 business days
- SA: 3–8 business days
- TAS: 4–10 business days
- WA: 5–10 business days
Tracking is provided on dispatch. Remote postcodes may incur additional fees.
30-day change-of-mind returns
We offer a 30-day change-of-mind return on select unopened products in original packaging (excluding health/safety items or bulk purchases). Email us within 30 days of delivery to start a return.
A restocking fee of 7–25% applies, plus return postage (unless approved otherwise). Customer-incurred postage costs are non-refundable without prior approval.
Faulty or damaged on arrival
If your product arrives faulty or damaged, contact our support team with your order number, photos/videos of the fault, and the original packaging. Do not return items without a return authorisation.
Warranty
12-month Australian warranty on this product unless noted otherwise. The warranty covers manufacturing defects under normal use.
The warranty does not cover:
- Damage caused by misuse, incorrect installation, or modification.
- Damage during delivery (claim under shipping policy instead).
- Normal wear and tear.
To claim warranty: contact our support team with your order number, photos/videos of the fault, and a brief description. We will assess the claim and offer a replacement, repair, or refund as appropriate.
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Why Aussies Shop With Auzzi
A registered Australian business with real local support, transparent pricing, and fair returns.
Australian Business
ABN 79 670 758 782. Registered in Australia.
Fast Australia-Wide Dispatch
Ships fast from our Sydney + Melbourne warehouses.
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30-Day Returns
Change-of-mind returns within 30 days.