so do you think a Aftermarket Fuel supply system will improve mileage

[6V92TA]

I am the Admin of a large Cummins /Ram forum over on social media
and we have a few people on ther claiming they put on a FASS fuel system and their fuel economy improved.

for the life of me can't understand how modifying the fuel supply pre injection system
would make any difference but I didn't feel like arguing with them.

 

[NIsaacs]

It's been my experience that people will make a so called fuel mileage improvement mod, then drive with that in mind, report the huge savings, then go back to normal and not report it

Nick

 

[6V92TA]

I just want to ask them if they know that the fuel supply system doesn't determine the fuel injection rate, but I don't bother asking because I know the already know the answer and what is coming next .

they don't know but they will argue.

 

[DavidC]

spending that kind of money it has to do something so you are actually making an investment that pays for itself over time

Dave

 

[TFucili]

Most folks feel the need to justify their purchase, and few will admit being sold a load of poles.

 

[Jim W]

You know it might have actual improved their fuel economy a little. Why? They now have a lighter load that they are carrying around in the truck, less money in their wallets.

 

[AEdelheit]

The only reason I want to a Fass pump is because my stock pump died, did not notice any difference in mileage.