It is not so much about the percentage of ethanol at the pump to a certain extent. It all about the impurities in the percentage of fuel that is not ethanol. I had to have a fuel pump replaced because there was so much junk in the pump ethanol I was running and it was over 80% ethanol. I started running nothing but e-90 after that. There have been improvements made to fuel pumps made for ethanol since then.

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Yup. That’s exactly what Jay from real street stated.

That is the reason why Injector Dynamic's came out with their fuel filter for E85 and Bosch injectors. ID-750 I think it is. That is what is on my car. I did have my injectors cleaned and tested before being put on the new motor because the car had pump E85 in the tank since December of last year. Paying that bill was a no brainer.

Here is the filter setup.

ID F750 Fuel Filter - Injector Dynamics

Remeber, every two- three fill ups with E run a tank of gasoline through the motor.

Not happening.....LOL 93 octane is too boring.

And the bad thing is, every tanker truck would be delivering completely different crap than the previous truck so who knows what you're getting each time.

How did they test out prior to cleaning?

They have a tester at MA. I think they said they were fine. No issues.

Let me ask again. LOL

That's the thing that scares me the most is a partially or clogged injector(s). I do run a tank of sh1t (91 octane) every few tanks of e85 but of course I don't know if it's doing any good.

That is exactly why I had them tested and cleaned.

Absoutely. I'll have to do the same for peace of mind

I actually had an injector go bad during my ordeal. Fortunately I can get "pump" e-85 delivered to me in a barrel straight from the transfer station so it should be clean since it is not coming from a tanker truck or stored in tank forever.

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What comes from the refinery is mostly clean fuel. Over a period of time. The tanks at the gas station accumulate junk over time. Everytime a tanker dumps it load. It stirs all that chit up. It takes a couple of days for it to resettle. The kicker is how often does that tank get refilled? If it's every couple of days. The junk never fully settles out. If I remember right. The pick up pipe is about a foot from the bottom of the tank. This is to allow for a accumulation of water and junk. The station is required to stick the tanks daily to check for fuel level and water level. When the water gets to a predetermined level. They will come in and pump the water and junk out. Most tanks will have a few inches of water in them.

My brother used to own a gas station.

Lubrications properties in gasoline. This is per mazworx when I spoke with him. To each it’s own though