Aftermarket Fuel Pump

[Mayuri Krab]

Hey guys,

Recently my fuel pump died & the mechanic replaced it with a Bosch in-tank pump, seeing how it was cheaper compared to OEM Nissian pumps.

When I went to pick up the car, he mention something about, I should try & keep the tank 1/2 full, something about the pump being submerged in fuel to help it in cooling, where if I let the fuel level too low & the pump is exposed too much it may overheat?

Does this sound right? If it were true does that mean I have effectively crippled my millage range down to 1/2?

I usually fuel up when I'm at the 1/4 mark. Would this cause the pump to overheat & thus damaging it?

The people with Bosch in-tank pumps, what are your thoughts on this? Do you keep your tank >1/2 full all the time?

Cheers.

[blind_elk]

External fuel pumps use the fuel passing through them to keep cool. I would imagine that the internal pumps would be the same.

And why doesn't Nissan warn about keeping the tank more than half full?

[TRB-001]

your mechanic is incorrect.

the above statement is correct..... the pump is cooled by the fuel going thru it, so dont stress.

its 10x more important to make sure u put good fuel in ur car then worrying bout the level

[Mayuri Krab]

Cool, thanks for the info

I always fuel up on RON98 (BP ultimate or Caltex Vortex 98) so its all good in that department.