SWEPCO 503 Premium Gasoline Improver restores performance by targeting the source of power loss—carbon, gum, and varnish deposits in the fuel system. Its advanced formula dissolves contaminants from injectors, valves, and upper cylinders, ensuring smoother combustion, increased fuel economy, and reduced engine wear. Especially effective for modern and older gasoline engines under load, SWEPCO 503 keeps injectors, pumps, and valves operating like new.
Key Features:
Cleans the Entire Fuel System: Removes gum, varnish, and carbon buildup from injectors, fuel lines, tanks, and intake valves.
Reduces Wear & Sticky Valves: Protects injectors, pumps, and seals from wear while eliminating valve sticking issues.
Improves Compression & Lubrication: Improves combustion efficiency while lubricating upper cylinders for smoother operation.
Mixed Fleet Safe: Safe for use in all gasoline-powered engines—no risk of misapplication across different platforms.
Improves Fuel Economy: Cleaner systems burn fuel more efficiently, leading to better mileage and reduced maintenance costs.
Performance Benefits:
Eliminates fuel system contaminants before they cause damage
Prevents power loss due to clogged injectors and dirty valves
Protects internal components from wear in low-lubricity fuels
Boosts combustion quality for faster response and smoother idle
Reduces maintenance frequency and fuel-related repair costs
Markets Served:
Automotive Repair & Service Shops
Fleet Maintenance Programs
Trucking & Delivery Operations
Agricultural & Construction Equipment
Common Applications:
All gasoline-powered cars and light trucks
Fleet vehicles, municipal cars, and commercial vans
Over-the-road trucks with gas engines
Mobile equipment with high-load gasoline engines
Performance tuning and preventative engine maintenance
STOP POWER LOSS AT THE SOURCE — CLEAN YOUR SYSTEM WITH SWEPCO 503
