How many litres of fuel will this 250ml bottle treat?

The bottle has a 10ml vessel that is filled from the main bottle by a tube (hence the two caps visible in the image); this 10ml will be the right amount for 1litre (since the 250ml bottle is the right amount for 25litres). so for 5litres you can fill this small vessel 5 times and add each time to your 5 litres of fuel

Please clarify directions for use in lawnmower ?

The in-built measure at side of bottle is marked 10mL. Remove associated cap and foil seal, if new, then squeeze bottle to fill this measure. Additive transfers from main bottle to measuring cup. Pour measured amount (10mL) into bulk fuel container. Repeat procedure to give correct dilution with fuel of 10ml (one measure) per litre of fuel. Shake bulk storage can to mix before adding to mower fuel tank.

will one treatment with this product really keep my store of 30L of petrol good for 3 years?

it will certainly keep it good for a year,never had a reason to keep fuel any longer.

What is the difference between 992381 and 992380 please

Size: the 992380 is 100ml and the 992381 is 250ml

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Fuel Fit

Product ID: 47954628

Details

Brand
Briggs &
Exterior finish
Metal
Inlet connection type
Thread
Manufacturer
Briggs &
Material
Metal
Number of Packs
1

⏳Keeps fuel fresh up to 3 years

🧼Detergent action prevents gum & varnish

🛡️Protects engine from ethanol corrosion

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£15.17

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Description

🛠️ Keep your engine fresh, clean, and corrosion-free — fuel confidence every time!

CARBURETTOR CLEAN START - Detergent ingredients keep carburettors clean for smooth, reliable engine starts.
METAL PROTECTION BARRIER - Corrosion inhibitors form a protective layer on vulnerable engine metals.
ETHANOL CORROSION DEFENSE - Advanced formula shields metal parts from damaging ethanol-water mix.
TRUSTED BY PROS CLASSICS - Preferred by mechanics and classic vehicle owners to avoid expensive rebuilds.
LONG LASTING FUEL FRESHNESS - Stabilizes fuel for up to 3 years, eliminating costly stale fuel issues.

Briggs & Stratton Fuel Fit Additive/Stabiliser (250ml) is a premium fuel additive designed to keep fuel fresh for up to 3 years while protecting engines from ethanol-induced corrosion. Its detergent formula prevents gum and varnish buildup, ensuring easy starts and prolonged engine life. Ideal for classic and infrequently used vehicles, it forms a protective barrier on metal parts, combating the damaging effects of ethanol-water mixtures common in modern fuels.

Specifications

ASIN	B003374F9E
Best Sellers Rank	348 in Automotive ( See Top 100 in Automotive ) 12 in Fuel Systems
Brand	Briggs & Stratton
Connector Type	Threaded
Customer Reviews	4.6 4.6 out of 5 stars (3,299)
Exterior Finish	Metal
Inlet Connection Type	Thread
Item Type Name	Fuel Fit Fuel stabiliser
Manufacturer	Briggs & Stratton
Material	Metal
Model Number	992381
Number of Ports	2
Outlet Connection Type	NPT
Part Number	992381
Set Name	Briggs & Stratton
Size	1/4" or 3/8"
Smart Home Compatibility	Not Smart Home Compatible
Thread Size	1/4" or 3/8"
Thread Type	NPT
UPC	798256131028
Unit Count	1.0 count
Valve Type	Gate Valve

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