SWEPCO 503 Premium Gasoline Improver, 12OZ Bottle

Expected time to ship, 2-3 business days
Quick Overview

A dirty fuel system causes poor fuel economy, poor performance and increased maintenance costs. 

SWEPCO 503 Premium Gasoline Improver
 eliminates these problems by keeping fuel injectors, pumps and other close tolerance components clean. Special chemistry dissolves and removes harmful gum, varnish & carbon deposits in fuel systems and upper cylinder areas.

It also protects expensive fuel injectors, pumps and o-rings from wear and deterioration caused by today’s low–sulfur diesel fuel. Regular use keeps fuel systems in perfect operating condition.

Especially recommended for all types of automobile & light truck fleets.

Don't see what you need or need help making a decision on which product is right for your project?
Contact Us


  • Keeps fuel injectors and fuel delivery system clean
  • Eliminates carbon deposits on intake and exhaust valves
  • Only 60% burns and 40% remains to lubricate
  • Reduces wear
  • Eliminates sticky valves, improves compression
  • Dissolves harmful gums

SWEPCO Globally Harmonized System Safety Data Sheet (GHS SDS) Index

More Information
Custom Stock StatusExpected time to ship, 2-3 business days
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account