Ethanol Calculator

Red Poison

Over it
Established Member
Joined
Feb 14, 2008
Messages
1,803
Location
DMV
I also found this... looks like something nice to have but it is a bit too expensive for my taste.

Zeitronix ECA : SEMA Award Winning Ethanol Content Analyzer and Flex Fuel Sensor for E-85 and E-85/gasoline Blends

ECA-blue_180x131.gif


[youtube_browser]wsWZVrdpSRI[/youtube_browser]

I already purchased Summit's ethanol tester (the same one you posted about) and I'm going to fill up a half-a-tank, put some is a plastic cup (just a squirt) and fill up the rest of the tank. This will give me a median sample of gas into my car. I plan to keep a water bottle in the car for testing. I'll pour in the water, gas, and test. This way I can test the gas right at the pump and know what I have in as soon as I drive away.
 

04sleeper

Runs On "Liquid Gold"
Super Moderator
Joined
Sep 17, 2005
Messages
12,579
Location
Dallas, TX
I have see that. Thanks for sharing.

Remember when testing to fill to the meniscus with both water and E85 at each mark.

As seen here in "A".
Reading_the_meniscus.png
 

dadro77

Deez nuts....
Established Member
Joined
Jul 16, 2006
Messages
831
Location
south fla
I also found this... looks like something nice to have but it is a bit too expensive for my taste.

Zeitronix ECA : SEMA Award Winning Ethanol Content Analyzer and Flex Fuel Sensor for E-85 and E-85/gasoline Blends

ECA-blue_180x131.gif




I already purchased Summit's ethanol tester (the same one you posted about) and I'm going to fill up a half-a-tank, put some is a plastic cup (just a squirt) and fill up the rest of the tank. This will give me a median sample of gas into my car. I plan to keep a water bottle in the car for testing. I'll pour in the water, gas, and test. This way I can test the gas right at the pump and know what I have in as soon as I drive away.



That is pretty cool. I may look into that for the future..
 

sixt5

New Member
Established Member
Joined
Jun 29, 2005
Messages
1,916
Location
lexington, Kentucky
(newb question)

is there advantage of running say half e85 and half 93 octane? my truck is a flex fuel truck so no prob running it.
 

04sleeper

Runs On "Liquid Gold"
Super Moderator
Joined
Sep 17, 2005
Messages
12,579
Location
Dallas, TX
(newb question)

is there advantage of running say half e85 and half 93 octane? my truck is a flex fuel truck so no prob running it.
It will raise the octane and keep your engine much cleaner with a lot less carbon build up.
 

SVT Ryan

New Member
Established Member
Joined
Jan 24, 2012
Messages
112
Location
Texas
I only get 91 in my town but we have a e85 station as well. Can you mix the two together to get a higher octane on the stock fuel system to get say 93? I used the calculator and it came out to e25
 
Last edited:

derockgt

Active Member
Established Member
Joined
Jul 14, 2010
Messages
843
Location
Michigan
I only get 91 in my town but we have a e85 station as well. Can you mix the two together to get a higher octane on the stock fuel system to get say 93? I used the calculator and it came out to e25

im wondering the same, i used to calculator 10 gallons 91(e10) and 2 gallons of e85= 93.3, but would the stock fuel system be able to handle it? my FPDC is around 80 %
 

oneSVT

New Member
Established Member
Joined
Dec 25, 2012
Messages
20
Location
South Dakota
more octane is better than less. you just don't want to lean it out too much. owners manual should let you know.
 

65sohc

Member
Established Member
Joined
Sep 14, 2008
Messages
401
Location
CA
I just discovered this strategy and tried it for the first time today in my Boss. The link to the calculator in the original post provides the answer. Basically if you first pump in 2.2 gal of e85 and then top off with 91 e10 you end up with e20 and 93 octane in the Mustang's 16 gallon tank. The state of Minnesota mandated several years ago that all gas be either e20 or e85. I spent several hours reading the research, done at Mankato State University, that led to the approval of the e20 ruling. They tested 80 non-flexfuel vehicles over a period of twelve months, comparing e0 and e20 and found no significant issues with driveability, fuel mileage, or component wear. The e85 I bought today cost $2.55/gal. so I saved about a buck filling the tank to gain two octane points. I'm hoping my TracKey will be happy and maybe give me a degree or two of timing advance.
 

Users who are viewing this thread



Top