I can't even begin to discuss the amount of misinformation in this thread.

...but I'll start with this. Potential energy in a gallon of X doesn't translate via 1to1 math into mechanical work. It depends on so much more related to the design of the engine. What's not converted is lost as heat, and sometimes just pushed through the engine into the exhaust system.

All grades of fuel are comingled by their respective grade. Rbob, cbob, 87 clear, etc... They all come up the pipeline and dumped into their respective tanks where the owners maintain an allocation/inventory. Various additives are added at time of loading at the rack per the sales contract.

Anyway, the OP found his solution, and it's not uncommon that during the seasonal change over this occurs. Modern vehicles don't just respond instantly to the reid vapor pressure changes...

Yeah, actually they do. Ever heard of a country called Brazil? They produce vehicles and sell them there and they run on blends and even e100.

Toyota, Honda, Nissan..the list goes on and on.

Also, guess what else they use in Brazil.. small engines (lawnmowers, etc) that somehow run on the same fuel.

Unfortunately the crap that is sent to us in NA doesn't include the few extra dollars worth of seals and tubing that is produced to withstand ethanol.

What you say is true. My old Evo had an e85 tune that was amazing.. unfortunately at the time the availability of e85 was nil in my area.

The high compression ratio took advantage of the high octane really well, and as long as the e85 blend dropped during the cold season, you would have no starting issues due to the lower RVP of ethanol.

Btw, my comment you quoted was actually in regards to small engines in lawn mowers, etc.. people have been brainwashed in the US by their redneck small engine shopes, which have been indoctrinated by the API against ethanol so they can sell them expensive "true fuel" at absurd price per gallon with incredibly high margin.

I am from the heart of Appalachia, I can talk about rednecks all I like... I am one.

I am also in the wholesale fuel business... So yeah, when True Fuel sells at $28 a gallon, one might want to stop and think about the why.

Yeah, you figured it out.

You must be in the business?

I hope you take this without any personal offense. The statement about the reserve oil being refined hastily (as a potential cause) tells me that you really don't know anything about refined products logistics and storage.

If this turn around in fuel efficiency is true, then you had something else going on that had absolutely zero to due with 10% ethanol...and you have been bashing it for no good reason.

The most likely scenario based upon what you describe is that some delivery driver actually dropped a compartment of something not gas into the gasoline storage tank.

Anyway, I hope your problems don't come back.

My company used to pump the water out of tank bottoms, and I can tell you that you certainly don't want the trash on the bottom of that tank. To this day I will not fill up my vehicle while a transport load is being dropped, as it causes everything to be churned back up into suspension.

The bottom of the tank is known as the heel fwiw, and won't be pumped into a customer vehicle for exactly the reason you mentioned.

I know this thread has morphed a lot, but I had to bring up the fact that the major retailers of diesel are absolutely ripping people off right now, driving inflation.

I know what the wholesale price of diesel is at a lot of terminals, and the public price of ULSD at NY Harbor is.

Loves, Pilot, TA are over $1 to $1.50 more than their delivered cost. It's f'ing absurd.