Starting fluid spray LIQUI MOLY 21700
- Product type: Starting fluid spray
- Manufacturer: LIQUI MOLY
- Part number: P000423
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- EAN: 4100420010859
LIQUI MOLY 21700 is a starting aid from LIQUI MOLY for petrol and diesel engines that are reluctant to start. Its highly ignitable formulation supports combustion during cold starts, after long standstills and in damp conditions. Engines fire up faster, reducing strain on the battery and starter.
Purpose and specifications
This product is designed to help start combustion engines in cars, motorcycles, boats, garden and agricultural machinery. Sprayed into the air intake, it enriches the intake air with an easily ignitable mixture so the engine catches quickly even at low temperatures.
- Improves cold starting for petrol and diesel engines
- Reduces wear on battery and starter during difficult starts
- Also suits motorcycles, boats, garden and agricultural machinery
When to use / change?
Use it whenever an engine struggles to start: in freezing weather, after long storage or in high humidity. Spray briefly into the air intake while cranking, following the label directions exactly. Stored sealed, the shelf life is approximately 5 years.
Frequently asked questions
Which engines can I use it on?
Petrol and diesel engines in vehicles, boats, garden and agricultural machinery.
How do I apply it?
Spray briefly into the air intake while cranking the engine; never spray excessively.
Does it harm the engine?
No, used sparingly as directed it is a recognised aid for difficult starts.
Suitable for: petrol and diesel engines with difficult starting behaviour. Highly flammable — follow the safety instructions on the label at all times. Art.: P000423.
Shipping & delivery
We deliver across the European Union. Orders confirmed on business days are prepared and handed to the carrier the same or the next business day.
Delivery methods
Courier delivery to your door, or pickup at parcel lockers and points across our carrier networks.






Delivery time
Usually 1–5 business days, depending on destination and carrier.
Shipping cost
Calculated automatically at checkout by weight and destination. Free shipping may apply above a store-specific order value.
Packaging — built to arrive intact
Oil and lubricants are liquids, so we pack every order to reach you perfectly. This is the care that goes into each parcel:
The result: a clean, sealed, undamaged parcel — because getting the oil to you intact is the whole point.
Returns
14-day right of withdrawal under EU consumer law. Items must be unused and in original, unopened packaging.
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