How can you increase your electric fuel pump life and increase your gasoline octane rating? Gasoline has some lubricity although low but lubricates your electric fuel pump in your gas tank. What prompted me to investigate this is my old 2001 Dodge Caravan fuel pump began to whine and make a lot of noise! I found that to increase the lubricity of gasoline you can add 2 cycle oil to your fuel. You can add a small 3 ounce bottle to your gas tank of 2 cycle oil for about 2 dollars at Walmart. After adding this to my gas tank my electric fuel pump stopped whining! I have added a bottle with every tank of gas since! What ratio of fuel to oil is difficult to find! I saw one technical periodical that said 500:1 for gasoline electric fuel pumps and 128:1 for diesel pump injector systems. Another advantage of doing this is the oil slows down the burn rate of gasoline and increases the octane rating of the gas! Remember 2 cycle oils are designed to be added to gas to be burned in combustion chambers and will not smoke! Do not use regular engine oils in gasoline! A dirty fuel filter can also cause a noisy fuel pump but I changed my filter about a year ago and knew was not the problem! Some newer electric fuel pumps have the filter built into the fuel pump so you would have to change the whole pump! A bad fuel pump regulator can also cause fuel pump noise but later vehicles have regulator built into fuel pump! Would have to change whole assembly. Best thing is to add 3-6 ounces of 2 cycle oil to gas tank and see if noise goes away? I did some research and contacted one of the oil companies that supply oils to retailers such as Walmart to white label their product as a fuel additive to lubricated fuel pumps and they did not care if I used their oil for another purpose but suggested I get product liability insurance! One gallon of this 2 cycle oil at Walmart is about 10 dollars. This is 128 ounces. That would make 42 bottles of 3 ounce 2 cycle oil and if you sold each bottle for 2 dollars that would be 84 dollars! There are no fuel pump lubrication additives presently on the market in retail stores so there is a market available! I just want to stay focused on our Blog and web site especially at my age to reach people for Christ! Perhaps someone younger could take this idea and give it a try! Thankyou. James and Hamsa Sasse. GodWhoisGod.com