Shell 93
I'm not sure how effective additives are. There are lots of vids on youtube that in my opinion are inconclusive.
On my old car, I have changed out the rubber hoses and accelerator pump diaphragm. Carbs are the most vulnerable, as they are open to the air, and will absorb a lot of moisture into the fuel which will create a toxic mess.
What I do now is, always run the engine warm, and when I'm about to park it overnight, I disconnect the electric fuel pump, and let the engine run the float bowls dry. The heat from the engine will evaporate what little is left. Time will tell if this is a good strategy.
On my old car, I have changed out the rubber hoses and accelerator pump diaphragm. Carbs are the most vulnerable, as they are open to the air, and will absorb a lot of moisture into the fuel which will create a toxic mess.
What I do now is, always run the engine warm, and when I'm about to park it overnight, I disconnect the electric fuel pump, and let the engine run the float bowls dry. The heat from the engine will evaporate what little is left. Time will tell if this is a good strategy.
I'm not sure how effective additives are. There are lots of vids on youtube that in my opinion are inconclusive.
On my old car, I have changed out the rubber hoses and accelerator pump diaphragm. Carbs are the most vulnerable, as they are open to the air, and will absorb a lot of moisture into the fuel which will create a toxic mess.
What I do now is, always run the engine warm, and when I'm about to park it overnight, I disconnect the electric fuel pump, and let the engine run the float bowls dry. The heat from the engine will evaporate what little is left. Time will tell if this is a good strategy.
On my old car, I have changed out the rubber hoses and accelerator pump diaphragm. Carbs are the most vulnerable, as they are open to the air, and will absorb a lot of moisture into the fuel which will create a toxic mess.
What I do now is, always run the engine warm, and when I'm about to park it overnight, I disconnect the electric fuel pump, and let the engine run the float bowls dry. The heat from the engine will evaporate what little is left. Time will tell if this is a good strategy.
Do you do that for short term storage, like between drives in a week?
I'm more concerned about November-April storage.
Now since the disappearance of ethanol free, I do it every time I drive the car. I currently do it manually by pulling the connection, but I have bought a switch to do it from under the dash
addendum: I think FI cars are less of a problem because fuel in the lines is not exposed to the air. Fuel in the tank is a bigger issue
Last edited by reacp911; May 19, 2023 at 09:34 AM.


