Customer Service: info@jlm-marine.com
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Most new, unused items may be returned within 7 days of delivery, subject to our Returns Policy. A 20% processing/restocking fee may apply for returns that are not the result of our error. Original shipping charges are non-refundable.
If the return is due to our mistake (incorrect or defective item), we will cover the return shipping cost and issue a full refund.
EU customers are entitled to a 14-day cooling-off period in accordance with applicable consumer protection regulations. Certain exclusions may apply.
Refunds are issued after the returned item is received and inspected. Processing times may vary depending on shipping transit and payment provider handling, but most refunds are completed promptly.
To request a return, please contact us at info@jlm-marine.com with your order number for return authorization. For full terms, conditions, and exclusions, please refer to our complete Returns & Refunds Policy page.
These durable vinyl "Diesel Only" warning labels are designed for a wide range of equipment, including boats, marine vessels, and various land-based machinery. They serve as a clear visual reminder of the fuel type, helping to prevent accidental and costly fueling errors.
These high-visibility decals are a crucial accessory for any diesel-powered equipment to ensure operational safety and prevent engine damage from incorrect fueling.
Confirm your equipment type in the table below. This is a universal warning label suitable for all diesel engines and machinery.
| Equipment Type | Application | Notes |
|---|---|---|
| Marine | Inboard/outboard diesel engines, fuel tanks, fill caps | Apply to fuel fill areas to prevent gasoline contamination. |
| Automotive | Trucks, tractors, construction equipment | Weatherproof for exterior application on fuel tanks and caps. |
| Industrial | Generators, pumps, machinery | Suitable for indoor machinery or outdoor equipment. |
| Specification | Value |
|---|---|
| Product Type | Vinyl Warning Decal |
| Installation | Self-adhesive |
| Fuel Type | Diesel (for marking purposes) |
| Housing Material | Vinyl |
| Housing Color | White with black text |
| Dimensions | _152.4 mm × 50.8 mm × 2.54 mm (6" × 2" × 0.1") |
| Weight | 18 grams (0.634 oz) |
| Warranty | 30-day return policy |
| Other Technical Attributes | Weather-resistant, waterproof, indoor/outdoor usage |
Q: Where is the best place to apply these decals?
A: We recommend placing them directly on or immediately next to the fuel fill cap and on the fuel tank itself to provide a clear and unmissable warning against using the wrong fuel.
Q: How durable are these labels in outdoor or marine environments?
A: The labels are made from weather-resistant and waterproof vinyl, making them suitable for marine, automotive, and industrial outdoor use. They are designed to withstand exposure to sun, rain, and saltwater spray.
Q: How can I ensure the decal sticks properly and lasts a long time?
A: For maximum adhesion, apply the decal to a clean, dry, and smooth surface. Proper surface preparation is key to preventing peeling and ensuring long-term durability.
Q: Are these official OEM warning decals?
A: This listing is for an aftermarket replacement part, not an OEM component. Our decals are designed to meet or exceed OEM specifications for visibility and durability, providing a reliable alternative for marking your equipment.
Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
We can ship to virtually any address in the world with free shipping available for most regions.
For our typical US and Canadian customers , our shipping timeframes are as follows:
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.
As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.
We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.
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