Questions about UCL

[Quest]

Originally Posted By: mechtech2
Don't forget that car Mfrs. recommend early oil changes with high alcohol fuels.
And alcohol vs. gasoline as a lube for the pump is a no brainer.


Subjective observations, no?

Q.

 

[gathermewool]

Originally Posted By: mechtech2
Don't forget that car Mfrs. recommend early oil changes with high alcohol fuels.
And alcohol vs. gasoline as a lube for the pump is a no brainer.


I don't understand. Are modern fuel pumps lubricated by fuel or simply fuel-cooled? How much less lubrous is E10 compared to E0?

 

[mechtech2]

In tank pumps are cooled ambiently from their outside and internally. Both mediums are fuel.

I don't get Quest's comment about being subjective.
Some car manuals state that high alcohol fueled vehicles should change the oil more frequently.
Gasoline is a better lube than alcohol. What is the doubt or question about this?

 

[ahoier]

Quest is pointing out the fact that some "flex fuel" vehicles have "stricter" or "severe service" maintenance schedule(s) outlined for vehicles that use more than 10% ethanol laced fuel.....

 

[gathermewool]

Originally Posted By: mechtech2
In tank pumps are cooled ambiently from their outside and internally. Both mediums are fuel.

I don't get Quest's comment about being subjective.
Some car manuals state that high alcohol fueled vehicles should change the oil more frequently.
Gasoline is a better lube than alcohol. What is the doubt or question about this?


More specifically, I was asking those who use UCL to "lube the pump" - why? Are there any fuel pumps that are fuel lubricated?

 

[mechtech2]

Yes - they all are fuel lubricated. [FI types -not carb types]

It is the main reason I use MMO or 2 stroke oil in the fuel.
Anything else good is a plus.

 

[gathermewool]

Originally Posted By: mechtech2
Yes - they all are fuel lubricated. [FI types -not carb types]

It is the main reason I use MMO or 2 stroke oil in the fuel.
Anything else good is a plus.


I guess I always assumed they were sealed and self-lubricated, and fuel-cooled.