LONGEVITY TIPS

• Do not fill your vehicle's fuel tank while the service station's underground storage tanks are being filled by tanker trucks. The flow of new gasoline into the underground tanks will stir up sediments, contaminants and condensed water found at the bottom of the tank. These contaminants and water may then end up in your car's gas tank while you are filling it. Allow the impurities time to settle before filling your tank. Otherwise, purchase your fuel from another service station on that particular occasion.
• If you live in an area with drastic seasonal climate changes, purchase gasoline from a high volume station in order to get fresh gasoline, especially at the time the weather changes. Low volume stations may still have older gasoline blended for the previous season's temperature. Ideally, a gasoline's volatility should be suited for the conditions under which it will be used. A mismatch of temperature and blend could cause poor engine performance.
• Do not use a gasoline with octane rating greater than that which is necessary to eliminate engine knock if any is present. The additional expense for the higher octane gasoline is wasted and is of no benefit to the engine. Higher octane gasoline does not provide better mileage, engine performance (power) or cleaning ability. Remember, octane relates only to anti-knock properties and nothing else. DO NOT WASTE YOUR MONEY.
• Avoid gasoline and alcohol blends, sometimes marketed as "gasohol," even though they may be advertised as clean burning. It is true that they may produce less pollution, but the alcohol, either ethanol or methanol, could damage parts of your fuel system. Methanol does not thoroughly blend with gasoline and is capable of dissolving plastic parts that your fuel system may contain. Ethanol, on the other hand, blends well with gasoline but corrodes metal parts when activated by moisture. Alcohol is more likely to be found in low priced "value" gasoline, even if not advertised. Avoid low priced "value" gasoline.
• Avoid gasoline treatments specifically meant to clean the fuel system of gum or varnish. These treatments may be strong enough to damage rubber or plastic components found in the system. Engines really should not require gasoline treatments if a brand name detergent gasoline is consistently used. This is especially important for fuel injected engines, since the injectors could be easily clogged with deposits if the gasoline does not keep them clean.
• Observe engine performance if switching to a new brand of gasoline. If performance deteriorates, switch back to the original brand or try another.
• THE USE OF HIGH QUALITY DETERGENT GASOLINE, IN CONJUNCTION WITH HIGH QUALITY DETERGENT OILS AND LUBRICANTS, IS INSTRUMENTAL IN DETERMINING THE LENGTH AND QUALITY OF ENGINE LIFE.

SYSTEMS
FUEL
OXYGENATED VS. REFORMULATED
PROPER CARE