E10 vs E85 petrol type

[nstg8a]

Originally Posted by You Yangs

This is exactly why people who use E fuel for the first time never use it again.

If you have never put E fuel in say a 5 year old car and then you do, the Ethanol has just mixed with whatever amount of water you have in your tank.

Yes that's right every fuel tank will over time accumulate moisture.

And Boom!!!! rough running, hard starting.....Oh must be the E fuel?

I'm never using that again!!!!!

Exactly. Any fuel change needs a few tanks run through before you see any consistent changes or benefits.


Sent from my iPhone using Tapatalk

[cat007]

I've had about 1.5 full tanks of E85 put through with a new pump and fuel filter. Car has 108k's on the clock - so I'm sure there's some excess gunk in there that'll get picked up. I'll change the filter again after another tank or 2 of E85.

Will run another tank of E85 again soon as I miss the smell haha (and performance).

One thing I did notice, is I had drained the E85 to very low before filling to 98.
When I first started the flex fuel sensor didn't have enough time to adjust itself from around 79% ethanol and it was very hard to start and ran rough for about 5-10 seconds. I'm guessing the fuel pump prime when IG is turned on, was not enough to cycle the 98 through the system.

I was thinking - is there a way to prime the fuel system for longer without starting? If you floor the throttle while cranking, I know this disables injectors, but does the pump still run and therefore prime/flush the fuel system?